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| author |   Ricardo Ribalda <ribalda@chromium.org> | 2024-11-28 20:53:41 +0000 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2024-12-19 14:44:43 +0000 |
| commit | f00ee2ca8da25ebccb8e19956d853c9055e2c8d0 (patch) | |
| tree | a24947d65bd754aeb8954b17734d1ce9dc544bf4 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | media: uvcvideo: Fix event flags in uvc_ctrl_send_events (diff) | |
| download | wireguard-linux-f00ee2ca8da25ebccb8e19956d853c9055e2c8d0.tar.xz wireguard-linux-f00ee2ca8da25ebccb8e19956d853c9055e2c8d0.zip | |
media: uvcvideo: Support partial control reads
Some cameras, like the ELMO MX-P3, do not return all the bytes
requested from a control if it can fit in less bytes.
Eg: Returning 0xab instead of 0x00ab.
usb 3-9: Failed to query (GET_DEF) UVC control 3 on unit 2: 1 (exp. 2).
Extend the returned value from the camera and return it.
Cc: stable@vger.kernel.org
Fixes: a763b9fb58be ("media: uvcvideo: Do not return positive errors in uvc_query_ctrl()")
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20241128-uvc-readless-v5-1-cf16ed282af8@chromium.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions