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| author |   Lars-Peter Clausen <lars@metafoo.de> | 2011-11-16 10:13:36 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-17 12:15:38 -0800 |
| commit | 7c92784a546d2945b6d6973a30f7134be78eb7a4 (patch) | |
| tree | 33321ac3d933a08646ce8418badd876f3917929f /include/linux/i2c.h | |
| parent | drivercore: Generalize module_platform_driver (diff) | |
| download | linux-dev-7c92784a546d2945b6d6973a30f7134be78eb7a4.tar.xz linux-dev-7c92784a546d2945b6d6973a30f7134be78eb7a4.zip | |
I2C: Add helper macro for i2c_driver boilerplate
This patch introduces the module_i2c_driver macro which is a convenience macro
for I2C driver modules similar to module_platform_driver. It is intended to be
used by drivers which init/exit section does nothing but register/unregister
the I2C driver. By using this macro it is possible to eliminate a few lines of
boilerplate code per I2C driver.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/i2c.h')
| -rw-r--r-- | include/linux/i2c.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index a81bf6d23b3e..7e92854fe9cc 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -485,6 +485,19 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap) { return adap->nr; } + +/** + * module_i2c_driver() - Helper macro for registering a I2C driver + * @__i2c_driver: i2c_driver struct + * + * Helper macro for I2C drivers which do not do anything special in module + * init/exit. This eliminates a lot of boilerplate. Each module may only + * use this macro once, and calling it replaces module_init() and module_exit() + */ +#define module_i2c_driver(__i2c_driver) \ + module_driver(__i2c_driver, i2c_add_driver, \ + i2c_del_driver) + #endif /* I2C */ #endif /* __KERNEL__ */ |