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L4Re Operating System Framework
Interface and Usage Documentation
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The RTC driver can drive various real-time clocks and provides an interface for other components, e.g., uvmm, to read and write the time.
It needs access to the hardware, depending on the clock, either via a vbus or via an I2C device.
There are no command line options.
Several capabilities can be used to interact with the environment:
'rtc' (server)
The capability that can be used from the outside to read and write the time.
'vbus'
The vbus used to access hardware for port-based clock on X86 and pl031 on arm.
The vbus is also needed for receiving the inhibitor signal from IO.