#ifndef __LINUX_PWM_H #define __LINUX_PWM_H struct pwm_device; struct pwm_device __weak *pwm_request(int pwm_id, const char *label); void __weak pwm_free(struct pwm_device *pwm); int __weak pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns); int __weak pwm_enable(struct pwm_device *pwm); void __weak pwm_disable(struct pwm_device *pwm); #endif