diff options
Diffstat (limited to 'Documentation/video4linux')
| -rw-r--r-- | Documentation/video4linux/v4l2-framework.txt | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 8fb9de4f4875..9b1d81c26b7d 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt | |||
| @@ -551,9 +551,8 @@ from /dev). | |||
| 551 | 551 | ||
| 552 | After video_unregister_device() returns no new opens can be done. However, | 552 | After video_unregister_device() returns no new opens can be done. However, |
| 553 | in the case of USB devices some application might still have one of these | 553 | in the case of USB devices some application might still have one of these |
| 554 | device nodes open. So after the unregister all file operations will return | 554 | device nodes open. So after the unregister all file operations (except |
| 555 | an error as well, except for the ioctl and unlocked_ioctl file operations: | 555 | release, of course) will return an error as well. |
| 556 | those will still be passed on since some buffer ioctls may still be needed. | ||
| 557 | 556 | ||
| 558 | When the last user of the video device node exits, then the vdev->release() | 557 | When the last user of the video device node exits, then the vdev->release() |
| 559 | callback is called and you can do the final cleanup there. | 558 | callback is called and you can do the final cleanup there. |