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authorLaurent Pinchart <laurent.pinchart@skynet.be>2009-07-19 18:39:56 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-09-12 12:18:09 -0300
commitbab6f66c08043a93b9460f6e0bf2b1cd9cc03e53 (patch)
treee7866ec7df71b5e9e52373479308bad1dcafebf4 /drivers/media/video/uvc/uvc_video.c
parent76594c5315d843fb1d3bffe7a8e2559086755f72 (diff)
V4L/DVB (12327): uvcvideo: Add PROBE_DEF quirk and enable it for the MT6227 device
At least one MT6227 model crashes when receiving a GET_DEF request on the video probe control. As the various models can't be told apart based on the descriptors, add a PROBE_DEF quirk to avoid sending the GET_DEF request and enable the quirk for all models. Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvc_video.c')
-rw-r--r--drivers/media/video/uvc/uvc_video.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/uvc/uvc_video.c b/drivers/media/video/uvc/uvc_video.c
index cf618d7c1f5..68468309932 100644
--- a/drivers/media/video/uvc/uvc_video.c
+++ b/drivers/media/video/uvc/uvc_video.c
@@ -128,6 +128,9 @@ static int uvc_get_video_ctrl(struct uvc_video_device *video,
if (data == NULL)
return -ENOMEM;
+ if ((video->dev->quirks & UVC_QUIRK_PROBE_DEF) && query == UVC_GET_DEF)
+ return -EIO;
+
ret = __uvc_query_ctrl(video->dev, query, 0, video->streaming->intfnum,
probe ? UVC_VS_PROBE_CONTROL : UVC_VS_COMMIT_CONTROL, data,
size, UVC_CTRL_STREAMING_TIMEOUT);