diff options
Diffstat (limited to 'Documentation/video4linux/v4l2-framework.txt')
-rw-r--r-- | Documentation/video4linux/v4l2-framework.txt | 8 |
1 files changed, 1 insertions, 7 deletions
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 667a43361706..a11dff07ef71 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt | |||
@@ -675,11 +675,6 @@ You should also set these fields: | |||
675 | video_device is initialized you *do* know which parent PCI device to use and | 675 | video_device is initialized you *do* know which parent PCI device to use and |
676 | so you set dev_device to the correct PCI device. | 676 | so you set dev_device to the correct PCI device. |
677 | 677 | ||
678 | - flags: optional. Set to V4L2_FL_USE_FH_PRIO if you want to let the framework | ||
679 | handle the VIDIOC_G/S_PRIORITY ioctls. This requires that you use struct | ||
680 | v4l2_fh. Eventually this flag will disappear once all drivers use the core | ||
681 | priority handling. But for now it has to be set explicitly. | ||
682 | |||
683 | If you use v4l2_ioctl_ops, then you should set .unlocked_ioctl to video_ioctl2 | 678 | If you use v4l2_ioctl_ops, then you should set .unlocked_ioctl to video_ioctl2 |
684 | in your v4l2_file_operations struct. | 679 | in your v4l2_file_operations struct. |
685 | 680 | ||
@@ -909,8 +904,7 @@ struct v4l2_fh | |||
909 | 904 | ||
910 | struct v4l2_fh provides a way to easily keep file handle specific data | 905 | struct v4l2_fh provides a way to easily keep file handle specific data |
911 | that is used by the V4L2 framework. New drivers must use struct v4l2_fh | 906 | that is used by the V4L2 framework. New drivers must use struct v4l2_fh |
912 | since it is also used to implement priority handling (VIDIOC_G/S_PRIORITY) | 907 | since it is also used to implement priority handling (VIDIOC_G/S_PRIORITY). |
913 | if the video_device flag V4L2_FL_USE_FH_PRIO is also set. | ||
914 | 908 | ||
915 | The users of v4l2_fh (in the V4L2 framework, not the driver) know | 909 | The users of v4l2_fh (in the V4L2 framework, not the driver) know |
916 | whether a driver uses v4l2_fh as its file->private_data pointer by | 910 | whether a driver uses v4l2_fh as its file->private_data pointer by |