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Ricardo Ribalda
758dbc756a
Some devices, like the Grandstream GUV3100 webcam, have an invalid UVC
descriptor where multiple entities share the same ID, this is invalid
and makes it impossible to make a proper entity tree without heuristics.
We have recently introduced a change in the way that we handle invalid
entities that has caused a regression on broken devices.
Implement a new heuristic to handle these devices properly.
Reported-by: Angel4005 <[email protected]>
Closes: https://lore.kernel.org/linux-media/CAOzBiVuS7ygUjjhCbyWg-KiNx+HFTYnqH5+GJhd6cYsNLT=DaA@mail.gmail.com/
Fixes: 0e2ee70291 ("media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENTITY_ID")
Cc: [email protected]
Signed-off-by: Ricardo Ribalda <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>