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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2009-02-21 22:08:41 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 17:42:54 +0200 |
| commit | ab373190813a2e89f9ab7338c6b106804611f2b7 (patch) | |
| tree | 104cb4edf5f751441f3cabc7ac768dc98c661a5d /drivers/media/video/v4l2-common.c | |
| parent | V4L/DVB (10687): v4l2-common/v4l2-spec: support/document write-only and butto... (diff) | |
| download | linux-ab373190813a2e89f9ab7338c6b106804611f2b7.tar.xz linux-ab373190813a2e89f9ab7338c6b106804611f2b7.zip | |
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>
Diffstat (limited to 'drivers/media/video/v4l2-common.c')
| -rw-r--r-- | drivers/media/video/v4l2-common.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index bca4daf87a12..caa7ba0705a5 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) |