diff options
| author | Laurent Pinchart <laurent.pinchart@skynet.be> | 2009-01-18 17:46:30 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:42:26 -0300 |
| commit | efdc8a9585ce02e70e538e46f235aefd63a3f8da (patch) | |
| tree | af233b7335af3914211348d83da4e32c8459be19 /drivers/media/video/uvc/uvcvideo.h | |
| parent | f61d1d8a563b1f3c5f1f55d856278aae3fd3987e (diff) | |
V4L/DVB (10295): uvcvideo: Retry URB buffers allocation when the system is low on memory.
URB buffers for video transfers are sized to UVC_MAX_PACKETS bulk/isochronous
packets by default. If the system is too low on memory try successively
smaller numbers of packets until allocation succeeds.
Tested-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/uvc/uvcvideo.h')
| -rw-r--r-- | drivers/media/video/uvc/uvcvideo.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/media/video/uvc/uvcvideo.h b/drivers/media/video/uvc/uvcvideo.h index 027947ea9b6..b2639878f9b 100644 --- a/drivers/media/video/uvc/uvcvideo.h +++ b/drivers/media/video/uvc/uvcvideo.h @@ -296,10 +296,8 @@ struct uvc_xu_control { /* Number of isochronous URBs. */ #define UVC_URBS 5 -/* Maximum number of packets per isochronous URB. */ -#define UVC_MAX_ISO_PACKETS 40 -/* Maximum frame size in bytes, for sanity checking. */ -#define UVC_MAX_FRAME_SIZE (16*1024*1024) +/* Maximum number of packets per URB. */ +#define UVC_MAX_PACKETS 32 /* Maximum number of video buffers. */ #define UVC_MAX_VIDEO_BUFFERS 32 /* Maximum status buffer size in bytes of interrupt URB. */ |