l4io_info Struct Reference
[Miscellaneous]

I/O Info Page Structure.

This is the L4Env's I/O server info page. We have 4KB and fill it 0...L4_PAGESIZE-1. More...

#include <types.h>

List of all members.

Public Attributes
union {
struct {
unsigned long   magic
volatile unsigned long   jiffies
unsigned long   hz
struct {
long   tv_sec
long   tv_usec
}   xtime
unsigned long   omega0
l4io_desc_device_t   devices []
}
char   padding [L4_PAGESIZE]
};

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Detailed Description

I/O Info Page Structure.

This is the L4Env's I/O server info page. We have 4KB and fill it 0...L4_PAGESIZE-1.

Test:

krishna: DDE libraries (resp. all io clients) have to do some assembler magic to put their symbols at the right place. (look into package dde_test resp. io (examples/dummy/))

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Member Data Documentation

unsigned long l4io_info::magic

magic number

volatile unsigned long l4io_info::jiffies

jiffies

unsigned long l4io_info::hz

update frequency for jiffies (HZ)

struct { ... } l4io_info::xtime

xtime

unsigned long l4io_info::omega0

omega0 flag (1 if started)

l4io_desc_device_t l4io_info::devices[]

device descriptors

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The documentation for this struct was generated from the following file:

• /tmp/l4check/full_tree/trunk/l4/pkg/generic_io/include/types.h