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authorHans Verkuil <hverkuil@xs4all.nl>2011-03-22 10:14:07 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-03-22 16:38:16 -0300
commitb1a873a37b6551a214ad37d1eee7654a9d65fd6e (patch)
tree3667a3d36c9f7c6ae73609004331f006751c44be /include/media/v4l2-dev.h
parent2f82441a8644287e5b647329cc30b590f6fd3714 (diff)
[media] v4l2: use new flag to enable core priority handling
Rather than guess which driver supports core priority handling, require drivers that do to explicitly set the V4L2_FL_USE_FH_PRIO flag in video_device. Updated the core prio handling accordingly and set the flag in the three drivers that do. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-dev.h')
-rw-r--r--include/media/v4l2-dev.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index 3700127ba299..8266d5ade2ff 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -35,7 +35,10 @@ struct v4l2_ctrl_handler;
Drivers can clear this flag if they want to block all future
device access. It is cleared by video_unregister_device. */
#define V4L2_FL_REGISTERED (0)
+/* file->private_data points to struct v4l2_fh */
#define V4L2_FL_USES_V4L2_FH (1)
+/* Use the prio field of v4l2_fh for core priority checking */
+#define V4L2_FL_USE_FH_PRIO (2)
/* Priority helper functions */