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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2007-09-12 13:32:50 +0200 |
|---|---|---|
| committer | Hans Verkuil <hverkuil@xs4all.nl> | 2007-09-12 13:32:50 +0200 |
| commit | 30e50fe332679825e6f54936c7c5e97bf109584d (patch) | |
| tree | db84205596207a8503b4133d6bc75fbd30342b6c /linux/include/media/v4l2-common.h | |
| parent | 55c585d89d06e29009f8bdc652c54e3de0993c4a (diff) | |
| download | mediapointer-dvb-s2-30e50fe332679825e6f54936c7c5e97bf109584d.tar.gz mediapointer-dvb-s2-30e50fe332679825e6f54936c7c5e97bf109584d.tar.bz2 | |
v4l2: add support for bus-based I2C drivers
From: Hans Verkuil <hverkuil@xs4all.nl>
Two new headers were added: one for I2C drivers that are only used
by V4L2 drivers converted to the new bus-based I2C API, and one that
can be used by both converted and unconverted drivers (at the expense of
some additional overhead).
To support the legacy I2C API a helper function was added to v4l2-common.c.
These headers take care of all the 'boilerplate' code that all V4L2 I2C drivers
have in common and will automatically support the bus-based I2C API introduced
in kernel 2.6.22.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
---
linux/drivers/media/video/v4l2-common.c | 37 +++++
linux/include/media/v4l2-common.h | 11 +
linux/include/media/v4l2-i2c-drv-legacy.h | 207 ++++++++++++++++++++++++++++++
linux/include/media/v4l2-i2c-drv.h | 199 ++++++++++++++++++++++++++++
4 files changed, 454 insertions(+)
Diffstat (limited to 'linux/include/media/v4l2-common.h')
| -rw-r--r-- | linux/include/media/v4l2-common.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/linux/include/media/v4l2-common.h b/linux/include/media/v4l2-common.h index ee1265433..10fc32e16 100644 --- a/linux/include/media/v4l2-common.h +++ b/linux/include/media/v4l2-common.h @@ -113,6 +113,17 @@ int v4l2_chip_match_host(u32 id_type, u32 chip_id); /* ------------------------------------------------------------------------- */ +/* Helper function for I2C legacy drivers */ + +struct i2c_driver; +struct i2c_adapter; +struct i2c_client; + +int v4l2_i2c_attach(struct i2c_adapter *adapter, int address, struct i2c_driver *driver, + const char *name, int (*probe)(struct i2c_client *)); + +/* ------------------------------------------------------------------------- */ + /* Internal ioctls */ /* VIDIOC_INT_DECODE_VBI_LINE */ |