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 */
32