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authorHans Verkuil <hverkuil@xs4all.nl>2007-09-12 15:32:50 +0400
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-01-26 00:01:16 +0300
commit8ffbc6559493c64d6194c92d856196fdaeb8a5fb (patch)
treeb279073efa70f56cf6f0614a6a96374464e492ec /include/media/v4l2-common.h
parent5ef4730d1bfe5be71ce54d927c510ad5da968854 (diff)
downloadlinux-8ffbc6559493c64d6194c92d856196fdaeb8a5fb.tar.xz
V4L/DVB (6451): v4l2: add support for bus-based I2C drivers
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>
Diffstat (limited to 'include/media/v4l2-common.h')
-rw-r--r--include/media/v4l2-common.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index c019c1e99895..475d0d8275e0 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -104,6 +104,17 @@ 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 */