From: Sylwester Nawrocki Date: Thu, 26 Jul 2012 12:30:50 +0000 (-0300) Subject: [media] Feature removal: using capture and output capabilities for m2m devices X-Git-Tag: next-20120731~51^2~9^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a1367f1b260d29e9b9fb20d8e2f39f1e74fa6c3b;p=karo-tx-linux.git [media] Feature removal: using capture and output capabilities for m2m devices Identifying a memory-to-memory video device through an ORed output and capture capability flags is not reliable. Schedule this for removal. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index b99803066b7b..dbefb17b821d 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -576,3 +576,17 @@ Why: The regular V4L2 selections and the subdev selection API originally any instabilities in the user space interface. After few cycles these backward compatibility definitions will be removed. Who: Sylwester Nawrocki + +---------------------------- + +What: Using V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags + to indicate a V4L2 memory-to-memory device capability +When: 3.8 +Why: New drivers should use new V4L2_CAP_VIDEO_M2M capability flag + to indicate a V4L2 video memory-to-memory (M2M) device and + applications can now identify a M2M video device by checking + for V4L2_CAP_VIDEO_M2M, with VIDIOC_QUERYCAP ioctl. Using ORed + V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags for M2M + devices is ambiguous and may lead, for example, to identifying + a M2M device as a video capture or output device. +Who: Sylwester Nawrocki