Device driver initialization sequence

[Ярослав Лещинский]

Hello Sebastian,

Thank you. This looks like what I needed.

On Fri, 9 Nov 2018 at 13:32, Sebastian Huber <
sebastian.huber at embedded-brains.de> wrote:

> Hello Yaroslav,
>
> the initialization sequence is documented here:
>
>
> https://docs.rtems.org/branches/master/c-user/initialization.html#initializing-rtems
>
> I would not use the I/O Manager. Working with major/minor numbers is
> quite painful. I would initialize custom devices in the initialization
> task. If you need the POSIX file descriptor API for your devices, then I
> would use IMFS_make_generic_node() to register them.
>
> On 09/11/2018 11:25, Ярослав Лещинский wrote:
> > Hello,
> >
> > I read the documentation about I/O Manager, found different source
> > codes where mentioning not only rtems_io_* functionality but also
> > drvmgr*, rtems_libio* and another mechanisms which are referred to
> > device driver topic and I have a feeling that I'm missing something.
> >
> > Could you please correct me if I'm wrong in the following steps of
> > initialization of device driver:
> >
> > 1. define *CONFIGURE_MAXIMUM_DRIVERS* macro
> > 1. Create *rtems_driver_address_table *and register it via
> > *register_io_register_driver*
> > 2. Write all necessary functions for *rtems_io_initialize,
> > rtems_io_open, etc*
> > 3. Associate name with major:minor pair using *rtems_register_name*
> > *
> > *
> > As I understood there are can be a lot of different device drivers
> > tables and I should somehow get the right major:minor driver from the
> > right table. How I can do this?
> >
> > --
> > --
> > Kind regards,
> > *Yaroslav Leshchinsky*
> >
> > _______________________________________________
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> > users at rtems.org
> > http://lists.rtems.org/mailman/listinfo/users
>
> --
> Sebastian Huber, embedded brains GmbH
>
> Address : Dornierstr. 4, D-82178 Puchheim, Germany
> Phone   : +49 89 189 47 41-16
> Fax     : +49 89 189 47 41-09
> E-Mail  : sebastian.huber at embedded-brains.de
> PGP     : Public key available on request.
>
> Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
>
>

-- 
--
Kind regards,
*Yaroslav Leshchinsky*
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