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    SubjectRe: [PATCH 2/5] I2C: Add helper macro for i2c_driver boilerplate
    On Wed, Nov 16, 2011 at 2:13 AM, Lars-Peter Clausen <lars@metafoo.de> wrote:
    > 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>

    > ---
    >  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 a81bf6d..7e92854 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__ */
    >
    > --
    > 1.7.7.1
    >
    >
    >



    --
    Grant Likely, B.Sc., P.Eng.
    Secret Lab Technologies Ltd.
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