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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-03-12 03:56:55 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-03-24 14:11:22 -0300 |
| commit | af2d68d1be24972a79b1616cf7d4d29137841f87 (patch) | |
| tree | fae6be2d99a37fa47b1f8aab40e07fa7c24454e8 /drivers/media/platform/vivi.c | |
| parent | b781e6be79a394cd6980e9cd8fd5c25822d152b6 (diff) | |
| download | op-kernel-dev-af2d68d1be24972a79b1616cf7d4d29137841f87.zip op-kernel-dev-af2d68d1be24972a79b1616cf7d4d29137841f87.tar.gz | |
[media] vivi: add v4l2_ctrl_modify_range test case
Update the brighness range depending on the selected input. Useful for
testing control range events.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform/vivi.c')
| -rw-r--r-- | drivers/media/platform/vivi.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/platform/vivi.c b/drivers/media/platform/vivi.c index c46d2e8..85bc314 100644 --- a/drivers/media/platform/vivi.c +++ b/drivers/media/platform/vivi.c @@ -1093,6 +1093,15 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i) return 0; dev->input = i; + /* + * Modify the brightness range depending on the input. + * This makes it easy to use vivi to test if applications can + * handle control range modifications and is also how this is + * typically used in practice as different inputs may be hooked + * up to different receivers with different control ranges. + */ + v4l2_ctrl_modify_range(dev->brightness, + 128 * i, 255 + 128 * i, 1, 127 + 128 * i); precalculate_bars(dev); precalculate_line(dev); return 0; |
