diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-02-21 18:08:41 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:42:54 -0300 |
| commit | ab373190813a2e89f9ab7338c6b106804611f2b7 (patch) | |
| tree | 104cb4edf5f751441f3cabc7ac768dc98c661a5d | |
| parent | 81dde91f640d6dea89229bb00c4ff38739fc1867 (diff) | |
V4L/DVB (10691): v4l2-common: add v4l2_i2c_subdev_addr()
Add small function to retrieve the i2c address from a v4l2_subdev
pointer.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 9 | ||||
| -rw-r--r-- | include/media/v4l2-common.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index bca4daf87a1..caa7ba0705a 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -1022,6 +1022,15 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter, } EXPORT_SYMBOL_GPL(v4l2_i2c_new_probed_subdev); +/* Return i2c client address of v4l2_subdev. */ +unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + return client ? client->addr : I2C_CLIENT_END; +} +EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_addr); + /* Return a list of I2C tuner addresses to probe. Use only if the tuner addresses are unknown. */ const unsigned short *v4l2_i2c_tuner_addrs(enum v4l2_i2c_tuner_type type) diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h index de785da4564..7779d9c93ec 100644 --- a/include/media/v4l2-common.h +++ b/include/media/v4l2-common.h @@ -154,6 +154,8 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter, /* Initialize an v4l2_subdev with data from an i2c_client struct */ void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client, const struct v4l2_subdev_ops *ops); +/* Return i2c client address of v4l2_subdev. */ +unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd); enum v4l2_i2c_tuner_type { ADDRS_RADIO, /* Radio tuner addresses */ |