[Mesa-dev] [PATCH] Don't use libudev for glx/dri3

[Kenneth Graunke]

On 11/18/2013 12:58 PM, Emil Velikov wrote:
> On 18/11/13 01:08, Keith Packard wrote:
>> libudev doesn't have a stable API/ABI, and if the application wants to use one
>> version, we'd best not load another into libGL.
>>
>> Signed-off-by: Keith Packard <keithp at keithp.com>
>> ---
>>
> Hi Keith,
> 
> Did you had the chance to look at src/gallium/targets/egl-static/egl.c?
> It has a different implementation of drm_fd_get_pci_id, whenever udev is
> not available.
> 
> AFAICS it goes back to the kernel via the relevant ioctl to retrieve the
> deviceid/chipid. Currently all but nouveau provide such information. I'm
> thinking that this approach might be more reasonable for those concerned
> with portability of the udev bits (think on *BSD).
> 
> I'm not nitpicking, just thought you might find this interesting.
> 
> Cheers,
> Emil

Possibly.  But looking at that code, it either:
1. Uses libudev
2. On Android only...strcmps the driver string to guess the family and
then uses kernel ioctls...
3. Fails.

The Android only nature makes me a bit wary.