diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/video4linux/v4l2-framework.txt | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 4b54c629bc56..c9ae70a37a6c 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt | |||
@@ -351,17 +351,6 @@ And this to go from an i2c_client to a v4l2_subdev struct: | |||
351 | 351 | ||
352 | struct v4l2_subdev *sd = i2c_get_clientdata(client); | 352 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
353 | 353 | ||
354 | Finally you need to make a command function to make driver->command() | ||
355 | call the right subdev_ops functions: | ||
356 | |||
357 | static int subdev_command(struct i2c_client *client, unsigned cmd, void *arg) | ||
358 | { | ||
359 | return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg); | ||
360 | } | ||
361 | |||
362 | If driver->command is never used then you can leave this out. Eventually the | ||
363 | driver->command usage should be removed from v4l. | ||
364 | |||
365 | Make sure to call v4l2_device_unregister_subdev(sd) when the remove() callback | 354 | Make sure to call v4l2_device_unregister_subdev(sd) when the remove() callback |
366 | is called. This will unregister the sub-device from the bridge driver. It is | 355 | is called. This will unregister the sub-device from the bridge driver. It is |
367 | safe to call this even if the sub-device was never registered. | 356 | safe to call this even if the sub-device was never registered. |