release/src-rt-6.x.4708/linux/linux-2.6.36/include/linux/pwm.h

   1 #ifndef __LINUX_PWM_H
   2 #define __LINUX_PWM_H
   3
   4 struct pwm_device;
   5
   6 /*
   7  * pwm_request - request a PWM device
   8  */
   9 struct pwm_device *pwm_request(int pwm_id, const char *label);
  10
  11 /*
  12  * pwm_free - free a PWM device
  13  */
  14 void pwm_free(struct pwm_device *pwm);
  15
  16 /*
  17  * pwm_config - change a PWM device configuration
  18  */
  19 int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
  20
  21 /*
  22  * pwm_enable - start a PWM output toggling
  23  */
  24 int pwm_enable(struct pwm_device *pwm);
  25
  26 /*
  27  * pwm_disable - stop a PWM output toggling
  28  */
  29 void pwm_disable(struct pwm_device *pwm);
  30
  31 #endif /* __LINUX_PWM_H */