staging: comedi: Add helper macro for comedi_driver boilerplate
PATCH 1/1 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 H Hartley Sweeten <[email protected]>
Cc Ian Abbott <[email protected]>
Cc Mori Hess <[email protected]>
Cc Greg Kroah-Hartman <gregkh@linuxfoundation
---
drivers/staging/comedi/comedidev.h +12 -0
@@ -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 *);