836 lines
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HTML
836 lines
54 KiB
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<div class="headertitle"><div class="title">L4vbus GPIO functions <div class="ingroups"><a class="el" href="group__l4vbus__module.html">L4 Vbus functions</a></div></div></div>
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<div id="dynsection-0" onclick="return dynsection.toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;"><span class="dynarrow"><span class="arrowhead closed"></span></span>Collaboration diagram for L4vbus GPIO functions:</div>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-enum-members" class="groupheader"><a id="enum-members" name="enum-members"></a>
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Enumerations</h2></td></tr>
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<tr class="memitem:ga18772c955709cc686b52d0a528e192aa" id="r_ga18772c955709cc686b52d0a528e192aa"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga18772c955709cc686b52d0a528e192aa">L4vbus_gpio_generic_func</a> { <a class="el" href="#gga18772c955709cc686b52d0a528e192aaa497c046e8f4e6d49e8a82c30e04d3771">L4VBUS_GPIO_SETUP_INPUT</a> = 0x100
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, <a class="el" href="#gga18772c955709cc686b52d0a528e192aaae39e090a750d5b8e95e21be525dd3c49">L4VBUS_GPIO_SETUP_OUTPUT</a> = 0x200
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, <a class="el" href="#gga18772c955709cc686b52d0a528e192aaa1a427d9c81e4814cab5e35c249163ddb">L4VBUS_GPIO_SETUP_IRQ</a> = 0x300
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}</td></tr>
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<tr class="memdesc:ga18772c955709cc686b52d0a528e192aa"><td class="mdescLeft"> </td><td class="mdescRight">Constants for generic GPIO functions. <a href="#ga18772c955709cc686b52d0a528e192aa">More...</a><br /></td></tr>
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<tr class="memitem:ga7b0f04157081fb3fa4e080247e363a71" id="r_ga7b0f04157081fb3fa4e080247e363a71"><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga7b0f04157081fb3fa4e080247e363a71">L4vbus_gpio_pull_modes</a> { <a class="el" href="#gga7b0f04157081fb3fa4e080247e363a71a6067b9ce99bb932958b45e623776046c">L4VBUS_GPIO_PIN_PULL_NONE</a> = 0x100
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, <a class="el" href="#gga7b0f04157081fb3fa4e080247e363a71af50451387a89cd3e677621a3e5b011d8">L4VBUS_GPIO_PIN_PULL_UP</a> = 0x200
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, <a class="el" href="#gga7b0f04157081fb3fa4e080247e363a71a4b24153cb92eb11f3d36e34a8b69bdf8">L4VBUS_GPIO_PIN_PULL_DOWN</a> = 0x300
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}</td></tr>
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<tr class="memdesc:ga7b0f04157081fb3fa4e080247e363a71"><td class="mdescLeft"> </td><td class="mdescRight">Constants for generic GPIO pull up/down resistor configuration. <a href="#ga7b0f04157081fb3fa4e080247e363a71">More...</a><br /></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-func-members" class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:ga46e1c665f5e63498194bf282d3a6d7c1" id="r_ga46e1c665f5e63498194bf282d3a6d7c1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga46e1c665f5e63498194bf282d3a6d7c1">l4vbus_gpio_setup</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin, unsigned mode, int value)</td></tr>
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<tr class="memdesc:ga46e1c665f5e63498194bf282d3a6d7c1"><td class="mdescLeft"> </td><td class="mdescRight">Configure the function of a GPIO pin. <br /></td></tr>
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<tr class="memitem:ga73d0bba6063694898ad7e99bc52d5ee1" id="r_ga73d0bba6063694898ad7e99bc52d5ee1"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga73d0bba6063694898ad7e99bc52d5ee1">l4vbus_gpio_config_pull</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin, unsigned mode)</td></tr>
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<tr class="memdesc:ga73d0bba6063694898ad7e99bc52d5ee1"><td class="mdescLeft"> </td><td class="mdescRight">Generic function to set pull up/down mode. <br /></td></tr>
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<tr class="memitem:gaac2fecf3856ce31d4866b295ee7bbbbb" id="r_gaac2fecf3856ce31d4866b295ee7bbbbb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#gaac2fecf3856ce31d4866b295ee7bbbbb">l4vbus_gpio_config_pad</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin, unsigned func, unsigned value)</td></tr>
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<tr class="memdesc:gaac2fecf3856ce31d4866b295ee7bbbbb"><td class="mdescLeft"> </td><td class="mdescRight">Hardware specific configuration function. <br /></td></tr>
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<tr class="memitem:gaa5a538c5c7b7f8599312e527b5baf911" id="r_gaa5a538c5c7b7f8599312e527b5baf911"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#gaa5a538c5c7b7f8599312e527b5baf911">l4vbus_gpio_config_get</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin, unsigned func, unsigned *value)</td></tr>
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<tr class="memdesc:gaa5a538c5c7b7f8599312e527b5baf911"><td class="mdescLeft"> </td><td class="mdescRight">Read hardware specific configuration. <br /></td></tr>
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<tr class="memitem:gaff5806be8c3c1e8d52dfe52d832bdf43" id="r_gaff5806be8c3c1e8d52dfe52d832bdf43"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#gaff5806be8c3c1e8d52dfe52d832bdf43">l4vbus_gpio_get</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin)</td></tr>
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<tr class="memdesc:gaff5806be8c3c1e8d52dfe52d832bdf43"><td class="mdescLeft"> </td><td class="mdescRight">Read value of GPIO input pin. <br /></td></tr>
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<tr class="memitem:ga0e94f6ceb55da86125636fc5fd75d748" id="r_ga0e94f6ceb55da86125636fc5fd75d748"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga0e94f6ceb55da86125636fc5fd75d748">l4vbus_gpio_set</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin, int value)</td></tr>
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<tr class="memdesc:ga0e94f6ceb55da86125636fc5fd75d748"><td class="mdescLeft"> </td><td class="mdescRight">Set GPIO output pin. <br /></td></tr>
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<tr class="memitem:gaa66a84f04240f0efad6b04538b6bae9c" id="r_gaa66a84f04240f0efad6b04538b6bae9c"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#gaa66a84f04240f0efad6b04538b6bae9c">l4vbus_gpio_multi_setup</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned offset, unsigned mask, unsigned mode, unsigned value)</td></tr>
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<tr class="memdesc:gaa66a84f04240f0efad6b04538b6bae9c"><td class="mdescLeft"> </td><td class="mdescRight">Configure function of multiple GPIO pins at once. <br /></td></tr>
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<tr class="memitem:ga80b5e036a81eb7befb431996b40a707f" id="r_ga80b5e036a81eb7befb431996b40a707f"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga80b5e036a81eb7befb431996b40a707f">l4vbus_gpio_multi_config_pad</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned offset, unsigned mask, unsigned func, unsigned value)</td></tr>
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<tr class="memdesc:ga80b5e036a81eb7befb431996b40a707f"><td class="mdescLeft"> </td><td class="mdescRight">Hardware specific configuration function for multiple GPIO pins. <br /></td></tr>
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<tr class="memitem:gab31b00f0bb6a783114f6d4c36320a063" id="r_gab31b00f0bb6a783114f6d4c36320a063"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#gab31b00f0bb6a783114f6d4c36320a063">l4vbus_gpio_multi_get</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned offset, unsigned *data)</td></tr>
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<tr class="memdesc:gab31b00f0bb6a783114f6d4c36320a063"><td class="mdescLeft"> </td><td class="mdescRight">Read values of multiple GPIO pins at once. <br /></td></tr>
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<tr class="memitem:ga257c6a6144968e79483b7c6994113bfc" id="r_ga257c6a6144968e79483b7c6994113bfc"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga257c6a6144968e79483b7c6994113bfc">l4vbus_gpio_multi_set</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned offset, unsigned mask, unsigned data)</td></tr>
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<tr class="memdesc:ga257c6a6144968e79483b7c6994113bfc"><td class="mdescLeft"> </td><td class="mdescRight">Set multiple GPIO output pins at once. <br /></td></tr>
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<tr class="memitem:ga0c7dd733a0691fcc98574d4c0d3c5735" id="r_ga0c7dd733a0691fcc98574d4c0d3c5735"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="#ga0c7dd733a0691fcc98574d4c0d3c5735">l4vbus_gpio_to_irq</a> (<a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a> vbus, <a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a> handle, unsigned pin)</td></tr>
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<tr class="memdesc:ga0c7dd733a0691fcc98574d4c0d3c5735"><td class="mdescLeft"> </td><td class="mdescRight">Create IRQ for GPIO pin. <br /></td></tr>
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</table>
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<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
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<a name="doc-enum-members" id="doc-enum-members"></a><h2 id="header-doc-enum-members" class="groupheader">Enumeration Type Documentation</h2>
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<a id="ga18772c955709cc686b52d0a528e192aa" name="ga18772c955709cc686b52d0a528e192aa"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga18772c955709cc686b52d0a528e192aa">◆ </a></span>L4vbus_gpio_generic_func</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">enum <a class="el" href="#ga18772c955709cc686b52d0a528e192aa">L4vbus_gpio_generic_func</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Constants for generic GPIO functions. </p>
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<table class="fieldtable">
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga18772c955709cc686b52d0a528e192aaa497c046e8f4e6d49e8a82c30e04d3771" name="gga18772c955709cc686b52d0a528e192aaa497c046e8f4e6d49e8a82c30e04d3771"></a>L4VBUS_GPIO_SETUP_INPUT </td><td class="fielddoc"><p>Set GPIO pin to input. </p>
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</td></tr>
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<tr><td class="fieldname"><a id="gga18772c955709cc686b52d0a528e192aaae39e090a750d5b8e95e21be525dd3c49" name="gga18772c955709cc686b52d0a528e192aaae39e090a750d5b8e95e21be525dd3c49"></a>L4VBUS_GPIO_SETUP_OUTPUT </td><td class="fielddoc"><p>Set GPIO pin to output. </p>
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</td></tr>
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<tr><td class="fieldname"><a id="gga18772c955709cc686b52d0a528e192aaa1a427d9c81e4814cab5e35c249163ddb" name="gga18772c955709cc686b52d0a528e192aaa1a427d9c81e4814cab5e35c249163ddb"></a>L4VBUS_GPIO_SETUP_IRQ </td><td class="fielddoc"><p>Set GPIO pin to IRQ. </p>
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</td></tr>
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</table>
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<p class="definition">Definition at line <a class="el" href="vbus__gpio_8h_source.html#l00024">24</a> of file <a class="el" href="vbus__gpio_8h_source.html">vbus_gpio.h</a>.</p>
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</div>
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</div>
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<a id="ga7b0f04157081fb3fa4e080247e363a71" name="ga7b0f04157081fb3fa4e080247e363a71"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7b0f04157081fb3fa4e080247e363a71">◆ </a></span>L4vbus_gpio_pull_modes</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">enum <a class="el" href="#ga7b0f04157081fb3fa4e080247e363a71">L4vbus_gpio_pull_modes</a></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Constants for generic GPIO pull up/down resistor configuration. </p>
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<table class="fieldtable">
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><a id="gga7b0f04157081fb3fa4e080247e363a71a6067b9ce99bb932958b45e623776046c" name="gga7b0f04157081fb3fa4e080247e363a71a6067b9ce99bb932958b45e623776046c"></a>L4VBUS_GPIO_PIN_PULL_NONE </td><td class="fielddoc"><p>No pull up or pull down resistors. </p>
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</td></tr>
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<tr><td class="fieldname"><a id="gga7b0f04157081fb3fa4e080247e363a71af50451387a89cd3e677621a3e5b011d8" name="gga7b0f04157081fb3fa4e080247e363a71af50451387a89cd3e677621a3e5b011d8"></a>L4VBUS_GPIO_PIN_PULL_UP </td><td class="fielddoc"><p>enable pull up resistor </p>
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</td></tr>
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<tr><td class="fieldname"><a id="gga7b0f04157081fb3fa4e080247e363a71a4b24153cb92eb11f3d36e34a8b69bdf8" name="gga7b0f04157081fb3fa4e080247e363a71a4b24153cb92eb11f3d36e34a8b69bdf8"></a>L4VBUS_GPIO_PIN_PULL_DOWN </td><td class="fielddoc"><p>enable pull down resistor </p>
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</td></tr>
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</table>
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<p class="definition">Definition at line <a class="el" href="vbus__gpio_8h_source.html#l00034">34</a> of file <a class="el" href="vbus__gpio_8h_source.html">vbus_gpio.h</a>.</p>
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</div>
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</div>
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<a name="doc-func-members" id="doc-func-members"></a><h2 id="header-doc-func-members" class="groupheader">Function Documentation</h2>
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<a id="gaa5a538c5c7b7f8599312e527b5baf911" name="gaa5a538c5c7b7f8599312e527b5baf911"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa5a538c5c7b7f8599312e527b5baf911">◆ </a></span>l4vbus_gpio_config_get()</h2>
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<div class="memitem">
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<td class="memname">int l4vbus_gpio_config_get </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>func</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned *</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</div><div class="memdoc">
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<p>Read hardware specific configuration. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir"></td><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">pin</td><td>GPIO pin number </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">func</td><td>Hardware specific configuration register to read from. Usually this is an offset to the GPIO chip's base address. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">value</td><td>The configuration value. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00102">L4vbus::Gpio_pin::config_get()</a>.</p>
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<a id="gaac2fecf3856ce31d4866b295ee7bbbbb" name="gaac2fecf3856ce31d4866b295ee7bbbbb"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaac2fecf3856ce31d4866b295ee7bbbbb">◆ </a></span>l4vbus_gpio_config_pad()</h2>
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<td class="memname">int l4vbus_gpio_config_pad </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>func</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</table>
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</div><div class="memdoc">
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<p>Hardware specific configuration function. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin number </td></tr>
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<tr><td class="paramname">func</td><td>Hardware specific configuration register, usually offset to the GPIO chip's base address </td></tr>
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<tr><td class="paramname">value</td><td>Value which is written into the hardware specific configuration register for the specified pin </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00089">L4vbus::Gpio_pin::config_pad()</a>.</p>
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<a id="ga73d0bba6063694898ad7e99bc52d5ee1" name="ga73d0bba6063694898ad7e99bc52d5ee1"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga73d0bba6063694898ad7e99bc52d5ee1">◆ </a></span>l4vbus_gpio_config_pull()</h2>
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<td class="memname">int l4vbus_gpio_config_pull </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mode</em></span> )</td>
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</div><div class="memdoc">
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<p>Generic function to set pull up/down mode. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin number </td></tr>
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<tr><td class="paramname">mode</td><td>mode for pull up/down resistors, see <a class="el" href="#ga7b0f04157081fb3fa4e080247e363a71" title="Constants for generic GPIO pull up/down resistor configuration.">L4vbus_gpio_pull_modes</a> </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00075">L4vbus::Gpio_pin::config_pull()</a>.</p>
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<a id="gaff5806be8c3c1e8d52dfe52d832bdf43" name="gaff5806be8c3c1e8d52dfe52d832bdf43"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaff5806be8c3c1e8d52dfe52d832bdf43">◆ </a></span>l4vbus_gpio_get()</h2>
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<td class="memname">int l4vbus_gpio_get </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span> )</td>
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</table>
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</div><div class="memdoc">
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<p>Read value of GPIO input pin. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin number to read from </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Value of GPIO pin (usually 0 or 1), negative error code otherwise. </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00038">L4vbus::Gpio_pin::get()</a>.</p>
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<a id="ga80b5e036a81eb7befb431996b40a707f" name="ga80b5e036a81eb7befb431996b40a707f"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga80b5e036a81eb7befb431996b40a707f">◆ </a></span>l4vbus_gpio_multi_config_pad()</h2>
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<td class="memname">int l4vbus_gpio_multi_config_pad </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>offset</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mask</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>func</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</table>
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</div><div class="memdoc">
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<p>Hardware specific configuration function for multiple GPIO pins. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">offset</td><td>Pin corresponding to the LSB in <em class="arg">mask</em>. Note: allowed may be hardware specific. </td></tr>
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<tr><td class="paramname">mask</td><td>Mask of GPIO pins to configure. A bit set to 1 configures this pin. A maximum of 32 pins can be configured at once. The real number depends on the hardware and the driver implementation. </td></tr>
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<tr><td class="paramname">func</td><td>Hardware specific configuration register, usually offset to the GPIO chip's base address. </td></tr>
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<tr><td class="paramname">value</td><td>Value which is written into the hardware specific configuration register for the specified pins </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00185">L4vbus::Gpio_module::config_pad()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#gab31b00f0bb6a783114f6d4c36320a063">◆ </a></span>l4vbus_gpio_multi_get()</h2>
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<div class="memitem">
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<td class="memname">int l4vbus_gpio_multi_get </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>offset</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned *</td> <td class="paramname"><span class="paramname"><em>data</em></span> )</td>
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</div><div class="memdoc">
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<p>Read values of multiple GPIO pins at once. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir"></td><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramdir"></td><td class="paramname">offset</td><td>Pin corresponding to the LSB in <em class="arg">data</em>. Note: allowed may be hardware specific. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">data</td><td>Each bit returns the value (0 or 1) for the corresponding GPIO pin. The value of pins that are not accessible is undefined. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00201">L4vbus::Gpio_module::get()</a>.</p>
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<a id="ga257c6a6144968e79483b7c6994113bfc" name="ga257c6a6144968e79483b7c6994113bfc"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga257c6a6144968e79483b7c6994113bfc">◆ </a></span>l4vbus_gpio_multi_set()</h2>
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<td class="memname">int l4vbus_gpio_multi_set </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>offset</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mask</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>data</em></span> )</td>
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</div><div class="memdoc">
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<p>Set multiple GPIO output pins at once. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">offset</td><td>Pin corresponding to the LSB in <em class="arg">data</em>. Note: allowed may be hardware specific. </td></tr>
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<tr><td class="paramname">mask</td><td>Mask of GPIO pins to set. A bit set to 1 selects this pin. A maximum of 32 pins can be set at once. The real number depends on the hardware and the driver implementation. </td></tr>
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<tr><td class="paramname">data</td><td>Each bit corresponds to the GPIO pin in <em class="arg">mask</em>. The value of each bit is written to the GPIO pin if its bit in <em class="arg">mask</em> is set. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00217">L4vbus::Gpio_module::set()</a>.</p>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="group__l4vbus__gpio__module_ga257c6a6144968e79483b7c6994113bfc_icgraph.svg" width="418" height="36"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<a id="gaa66a84f04240f0efad6b04538b6bae9c" name="gaa66a84f04240f0efad6b04538b6bae9c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa66a84f04240f0efad6b04538b6bae9c">◆ </a></span>l4vbus_gpio_multi_setup()</h2>
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<td class="memname">int l4vbus_gpio_multi_setup </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>offset</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mask</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mode</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Configure function of multiple GPIO pins at once. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">offset</td><td>Pin corresponding to the LSB in <em class="arg">mask</em>. Note: allowed may be hardware specific. </td></tr>
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<tr><td class="paramname">mask</td><td>Mask of GPIO pins to configure. A bit set to 1 configures this pin. A maximum of 32 pins can be configured at once. The real number depends on the hardware and the driver implementation. </td></tr>
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<tr><td class="paramname">mode</td><td>GPIO function, see <a class="el" href="#ga18772c955709cc686b52d0a528e192aa" title="Constants for generic GPIO functions.">L4vbus_gpio_generic_func</a> for generic functions. Hardware specific functions must be provided in the lower 8 bits. </td></tr>
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<tr><td class="paramname">value</td><td>Optional value to set the GPIO pins to if they are configured as output pins </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00166">L4vbus::Gpio_module::setup()</a>.</p>
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<a id="ga0e94f6ceb55da86125636fc5fd75d748" name="ga0e94f6ceb55da86125636fc5fd75d748"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0e94f6ceb55da86125636fc5fd75d748">◆ </a></span>l4vbus_gpio_set()</h2>
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<div class="memitem">
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<td class="memname">int l4vbus_gpio_set </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</table>
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</div><div class="memdoc">
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<p>Set GPIO output pin. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin number to write to </td></tr>
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<tr><td class="paramname">value</td><td>Value to write to the GPIO pin (usually 0 or 1) </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00049">L4vbus::Gpio_pin::set()</a>.</p>
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<div class="center"><iframe scrolling="no" loading="lazy" frameborder="0" src="group__l4vbus__gpio__module_ga0e94f6ceb55da86125636fc5fd75d748_icgraph.svg" width="347" height="36"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
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<a id="ga46e1c665f5e63498194bf282d3a6d7c1" name="ga46e1c665f5e63498194bf282d3a6d7c1"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga46e1c665f5e63498194bf282d3a6d7c1">◆ </a></span>l4vbus_gpio_setup()</h2>
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<td class="memname">int l4vbus_gpio_setup </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>mode</em></span>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">int</td> <td class="paramname"><span class="paramname"><em>value</em></span> )</td>
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</table>
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</div><div class="memdoc">
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<p>Configure the function of a GPIO pin. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin number </td></tr>
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<tr><td class="paramname">mode</td><td>GPIO function, see <a class="el" href="#ga18772c955709cc686b52d0a528e192aa" title="Constants for generic GPIO functions.">L4vbus_gpio_generic_func</a> for generic functions. Hardware specific functions must be provided in the lower 8 bits. </td></tr>
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<tr><td class="paramname">value</td><td>Optional value to set the GPIO pin to if it is configured as an output pin </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>0 if OK, error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="arm_2l4_2sys_2linkage_8h_source.html#l00033">L4_CV</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00064">L4vbus::Gpio_pin::setup()</a>.</p>
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<a id="ga0c7dd733a0691fcc98574d4c0d3c5735" name="ga0c7dd733a0691fcc98574d4c0d3c5735"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0c7dd733a0691fcc98574d4c0d3c5735">◆ </a></span>l4vbus_gpio_to_irq()</h2>
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<td class="memname">int l4vbus_gpio_to_irq </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__l4__cap__api.html#ga1445e923ce73029130d569d6e69a4dd8">l4_cap_idx_t</a></td> <td class="paramname"><span class="paramname"><em>vbus</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="vbus__types_8h.html#a3d2ee122c9c592d768eee886d36b31cf">l4vbus_device_handle_t</a></td> <td class="paramname"><span class="paramname"><em>handle</em></span>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">unsigned</td> <td class="paramname"><span class="paramname"><em>pin</em></span> )</td>
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</div><div class="memdoc">
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<p>Create IRQ for GPIO pin. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">vbus</td><td>V-BUS capability </td></tr>
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<tr><td class="paramname">handle</td><td>Device handle for the GPIO chip </td></tr>
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<tr><td class="paramname">pin</td><td>GPIO pin to create an IRQ for. </td></tr>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>IRQ number if OK, negative error code otherwise </dd></dl>
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<p class="reference">References <a class="el" href="compiler_8h_source.html#l00166">L4_END_DECLS</a>.</p>
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<p class="reference">Referenced by <a class="el" href="vbus__gpio_source.html#l00112">L4vbus::Gpio_pin::to_irq()</a>.</p>
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