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| author | Henrik Ingo <henrik.ingo@avoinelama.fi> | 2017-03-25 21:48:16 +0530 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 12:11:10 +0200 |
| commit | 2021dbf63ea680bd937f4d3a907572f136b2c032 (patch) | |
| tree | 7478eb0fcf0d9c97b19cdba68a7a0289129cd937 /kernel/debug | |
| parent | 26f7a530f2a5e7d38747c0a6c2dafb3d17f106e1 (diff) | |
uvcvideo: uvc_scan_fallback() for webcams with broken chain
commit e950267ab802c8558f1100eafd4087fd039ad634 upstream.
Some devices have invalid baSourceID references, causing uvc_scan_chain()
to fail, but if we just take the entities we can find and put them
together in the most sensible chain we can think of, turns out they do
work anyway. Note: This heuristic assumes there is a single chain.
At the time of writing, devices known to have such a broken chain are
- Acer Integrated Camera (5986:055a)
- Realtek rtl157a7 (0bda:57a7)
Signed-off-by: Henrik Ingo <henrik.ingo@avoinelama.fi>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'kernel/debug')
0 files changed, 0 insertions, 0 deletions