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[media] v4l: add g_dv_preset callback to V4L2 subdev 

Callback is used to acquire current digital video preset from a subdev.
It is used to avoid keeping dv preset in top-level driver.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Tomasz Stanislawski 2011-06-29 07:01:28 -03:00 committed by Mauro Carvalho Chehab
parent 839cf81346
commit 8b32dd0d3f
1 changed files with 4 additions and 0 deletions
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4
include/media/v4l2-subdev.h
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@ -246,6 +246,8 @@ struct v4l2_subdev_audio_ops {
s_dv_preset: set dv (Digital Video) preset in the sub device. Similar to
s_std()
g_dv_preset: get current dv (Digital Video) preset in the sub device.
query_dv_preset: query dv preset in the sub device. This is similar to
querystd()
@ -286,6 +288,8 @@ struct v4l2_subdev_video_ops {
struct v4l2_dv_enum_preset *preset);
int (*s_dv_preset)(struct v4l2_subdev *sd,
struct v4l2_dv_preset *preset);
int (*g_dv_preset)(struct v4l2_subdev *sd,
struct v4l2_dv_preset *preset);
int (*query_dv_preset)(struct v4l2_subdev *sd,
struct v4l2_dv_preset *preset);
int (*s_dv_timings)(struct v4l2_subdev *sd,