RTEMS I/O manager

[Joel Sherrill]

hwulf at et-inf.fho-emden.de wrote:
> Dear ladies and gentlemen,
>
> I'm trying to understand the inner workings of the RTEMS I/O manager.
> In the function rtems_io_initialize() in the source code file io.c
> there's called an initialization routine. But where is the assignment
> of this initialization routine (the assignment of
> _IO_Driver_address_table[major].initialization) ?
>   
It is part of RTEMS Configuration and is normally done using
rtems/confdefs.h.  See

http://www.rtems.com/onlinedocs/releases/rtemsdocs-4.7.1/share/rtems/html/c_user/c_user00377.html
> Thank you very much and kind regards,
>   Hank
>
> Source code for rtems_io_initialize():
> ======================================
> rtems_status_code rtems_io_initialize(
>    rtems_device_major_number  major,
>    rtems_device_minor_number  minor,
>    void             *argument
> )
> {
>      rtems_device_driver_entry callout;
>
>      if ( major >= _IO_Number_of_drivers )
>          return RTEMS_INVALID_NUMBER;
>
>      callout = _IO_Driver_address_table[major].initialization;
>      return callout ? callout(major, minor, argument) : RTEMS_SUCCESSFUL;
> }
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