diff options
| author | Sylwester Nawrocki <sylvester.nawrocki@gmail.com> | 2013-01-19 19:51:55 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-02-05 18:04:06 +0100 |
| commit | 2ccbe779bcdee130ea7f1525670dc9d60318a981 (patch) | |
| tree | f667acca6ab42a0565b062616b3a6f176508e874 /Documentation/early-userspace | |
| parent | [media] V4L: Add header file defining standard image sizes (diff) | |
| download | linux-2ccbe779bcdee130ea7f1525670dc9d60318a981.tar.xz linux-2ccbe779bcdee130ea7f1525670dc9d60318a981.zip | |
[media] v4l2-ctrl: Add helper function for the controls range update
This patch adds a helper function that allows to modify range,
i.e. minimum, maximum, step and default value of a v4l2 control,
after the control has been created and initialized. This is helpful
in situations when range of a control depends on user configurable
parameters, e.g. camera sensor absolute exposure time depending on
an output image resolution and frame rate.
v4l2_ctrl_modify_range() function allows to modify range of an
INTEGER, BOOL, MENU, INTEGER_MENU and BITMASK type controls.
Based on a patch from Hans Verkuil http://patchwork.linuxtv.org/patch/8654.
Signed-off-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/early-userspace')
0 files changed, 0 insertions, 0 deletions