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Commit fa7f86d1 authored by Axel Lin's avatar Axel Lin Committed by Dmitry Torokhov
Browse files

Input: serio - add helper macro for serio_driver boilerplate 



This patch introduces the module_serio_driver macro which is a
convenience macro for serio driver modules similar to
module_platform_driver. It is intended to be used by drivers
which init/exit section does nothing but registers/unregisters
the serio driver. By using this macro it is possible to eliminate
a few lines of boilerplate code per serio driver.

Based on work done by Lars-Peter Clausen <lars@metafoo.de> for
other buses (i2c and spi).

Signed-off-by: default avatarAxel Lin <axel.lin@gmail.com>
Signed-off-by: default avatarDmitry Torokhov <dtor@mail.ru>
parent ae584ca4

include/linux/serio.h

+13 −0
Original line number Original line Diff line number Diff line
@@ -96,6 +96,19 @@ int __must_check __serio_register_driver(struct serio_driver *drv, 




void serio_unregister_driver(struct serio_driver *drv);

void serio_unregister_driver(struct serio_driver *drv);





/**

 * module_serio_driver() - Helper macro for registering a serio driver

 * @__serio_driver: serio_driver struct

 *

 * Helper macro for serio 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_serio_driver(__serio_driver) \

	module_driver(__serio_driver, serio_register_driver, \

		       serio_unregister_driver)



static inline int serio_write(struct serio *serio, unsigned char data)

static inline int serio_write(struct serio *serio, unsigned char data)

{

{

	if (serio->write)

	if (serio->write)