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i2c: implement i2c_verify_adapter

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This converts a struct device * to a struct i2c_adapter * while verifying
that the device really is an I2C adapter. Just like i2c_verify_client.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Stephen Warren 2012-04-17 12:43:33 -06:00 • committed by Wolfram Sang
parent ec39ef83eb
commit 643dd09eb2
2 changed files with 18 additions and 0 deletions
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1
include/linux/i2c.h
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@ -232,6 +232,7 @@ struct i2c_client {
#define to_i2c_client(d) container_of(d, struct i2c_client, dev)
extern struct i2c_client *i2c_verify_client(struct device *dev);
extern struct i2c_adapter *i2c_verify_adapter(struct device *dev);
static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
{