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Commit 868f985c authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (11374): v4l2-common: add v4l2_i2c_new_probed_subdev_addr 



Add utility function to probe for a single address, rather than a list
of addresses.

Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent acebc70d

drivers/media/video/v4l2-common.c

+11 −0
Original line number Diff line number Diff line
@@ -864,6 +864,17 @@ struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter, 
}

EXPORT_SYMBOL_GPL(v4l2_i2c_new_probed_subdev);



struct v4l2_subdev *v4l2_i2c_new_probed_subdev_addr(struct v4l2_device *v4l2_dev,

		struct i2c_adapter *adapter,

		const char *module_name, const char *client_type, u8 addr)

{

	unsigned short addrs[2] = { addr, I2C_CLIENT_END };



	return v4l2_i2c_new_probed_subdev(v4l2_dev, adapter,

			module_name, client_type, addrs);

}

EXPORT_SYMBOL_GPL(v4l2_i2c_new_probed_subdev_addr);



/* Return i2c client address of v4l2_subdev. */

unsigned short v4l2_i2c_subdev_addr(struct v4l2_subdev *sd)

{

include/media/v4l2-common.h

+4 −0
Original line number Diff line number Diff line
@@ -147,6 +147,10 @@ struct v4l2_subdev *v4l2_i2c_new_subdev(struct i2c_adapter *adapter, 
struct v4l2_subdev *v4l2_i2c_new_probed_subdev(struct i2c_adapter *adapter,

		const char *module_name, const char *client_type,

		const unsigned short *addrs);

/* Like v4l2_i2c_new_probed_subdev, except probe for a single address. */

struct v4l2_subdev *v4l2_i2c_new_probed_subdev_addr(struct v4l2_device *v4l2_dev,

		struct i2c_adapter *adapter,

		const char *module_name, const char *client_type, u8 addr);

/* 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);