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i2c-algo-bit: Add pre- and post-xfer hooks

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Drivers might have to do random things before and/or after I2C
transfers. Add hooks to the i2c-algo-bit implementation to let them do
so.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Alex Deucher <alexdeucher@gmail.com>
This commit is contained in:
Jean Delvare 2010-03-13 20:56:56 +01:00
parent d07b56b309
commit 0a9c147513
2 changed files with 11 additions and 0 deletions
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2
include/linux/i2c-algo-bit.h
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@ -36,6 +36,8 @@ struct i2c_algo_bit_data {
void (*setscl) (void *data, int state);
int (*getsda) (void *data);
int (*getscl) (void *data);
int (*pre_xfer) (struct i2c_adapter *);
void (*post_xfer) (struct i2c_adapter *);
/* local settings */
int udelay; /* half clock cycle time in us,