Re: Unknown error

[Rogier Wolff]

Alan Cox wrote:
> > 2.4.8 says that device 228 is unassigned, but ...
> > 
> >   drivers/char/drm/drm.h:#define DRM_MAJOR       226
> >   drivers/net/wan/sdla_chdlc.c:#define WAN_TTY_MAJOR 226
> > 
> > Somebody has been naughty and used a code not assigned to them.

> 226 char        Direct Rendering Infrastructure (DRI)
>                   0 = /dev/dri/card0		First graphics card
>                   1 = /dev/dri/card1            Second graphics card 
> 
> 
> Peter - was this dual issued, or do Sangoma need to be spanked. The obvious
> place to put the sdla tty would I think be 229, since its not physically
> possible to put one in an iSeries machine.

Speaking of which... 

I always (try to) write my drivers to do:

#ifndef MY_MAJOR
#define MY_MAJOR xyz
#endif

This allows "test-compilation" with -Dtest_major , but is also
preparing for having a "majors.h" which defines ALL the major numbers
in one place. The place where it /completly/ obvious if two devices
are trying to use the same major.... 

			Roger. 

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