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Commit 20416257 authored by H Hartley Sweeten's avatar H Hartley Sweeten Committed by Greg Kroah-Hartman
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staging: comedi: Add helper macro for comedi_driver boilerplate 



Introduce the module_comedi_driver macro which is a convenience
macro for comedi driver modules similar to module_platform_driver.
It is intended to be used by drivers where the init/exit section
does nothing but register/unregister the comedi driver. By using
this macro it is possible to eliminate a few lines of boilerplate
code per comedi driver.

Signed-off-by: default avatarH Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e8ccc11f

drivers/staging/comedi/comedidev.h

+12 −0
Original line number Diff line number Diff line
@@ -298,6 +298,18 @@ int comedi_device_attach(struct comedi_device *dev, 
int comedi_driver_register(struct comedi_driver *);

int comedi_driver_unregister(struct comedi_driver *);



/**

 * module_comedi_driver() - Helper macro for registering a comedi driver

 * @__comedi_driver: comedi_driver struct

 *

 * Helper macro for comedi 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_comedi_driver(__comedi_driver) \

	module_driver(__comedi_driver, comedi_driver_register, \

			comedi_driver_unregister)



void init_polling(void);

void cleanup_polling(void);

void start_polling(struct comedi_device *);