root/include/linux/soundwire/sdw_type.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 2015-17 Intel Corporation. */
   3 
   4 #ifndef __SOUNDWIRE_TYPES_H
   5 #define __SOUNDWIRE_TYPES_H
   6 
   7 extern struct bus_type sdw_bus_type;
   8 
   9 #define drv_to_sdw_driver(_drv) container_of(_drv, struct sdw_driver, driver)
  10 
  11 #define sdw_register_driver(drv) \
  12         __sdw_register_driver(drv, THIS_MODULE)
  13 
  14 int __sdw_register_driver(struct sdw_driver *drv, struct module *owner);
  15 void sdw_unregister_driver(struct sdw_driver *drv);
  16 
  17 int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size);
  18 
  19 /**
  20  * module_sdw_driver() - Helper macro for registering a Soundwire driver
  21  * @__sdw_driver: soundwire slave driver struct
  22  *
  23  * Helper macro for Soundwire drivers which do not do anything special in
  24  * module init/exit. This eliminates a lot of boilerplate. Each module may only
  25  * use this macro once, and calling it replaces module_init() and module_exit()
  26  */
  27 #define module_sdw_driver(__sdw_driver) \
  28         module_driver(__sdw_driver, sdw_register_driver, \
  29                         sdw_unregister_driver)
  30 #endif /* __SOUNDWIRE_TYPES_H */