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Commit 45b2604e authored by Axel Lin's avatar Axel Lin Committed by Dmitry Torokhov
Browse files

Input: gameport - add helper macro for gameport_driver boilerplate 



This patch introduces the module_gameport_driver macro which is a
convenience macro for gameport 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
gameport driver. By using this macro it is possible to eliminate a
few lines of boilerplate code per gameport 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 65ac9f7a

include/linux/gameport.h

+13 −0
Original line number Diff line number Diff line
@@ -153,6 +153,19 @@ int __must_check __gameport_register_driver(struct gameport_driver *drv, 


void gameport_unregister_driver(struct gameport_driver *drv);



/**

 * module_gameport_driver() - Helper macro for registering a gameport driver

 * @__gameport_driver: gameport_driver struct

 *

 * Helper macro for gameport 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_gameport_driver(__gameport_driver) \

	module_driver(__gameport_driver, gameport_register_driver, \

		       gameport_unregister_driver)



#endif /* __KERNEL__ */



#define GAMEPORT_MODE_DISABLED		0