306 	int pwm;  in get_pwm()  local
314 		pwm = 255 - (255 * (int)data->dac)/180;  in get_pwm()
316 		pwm = 255 - (255 * (int)data->dac)/76;  in get_pwm()
318 	if (pwm < 0)  in get_pwm()
319 		pwm = 0;  in get_pwm()
321 	return sprintf(buf, "%d\n", pwm);  in get_pwm()
329 	unsigned long pwm;  in set_pwm()  local
332 	err = kstrtoul(buf, 10, &pwm);  in set_pwm()
336 	pwm = clamp_val(pwm, 0, 255);  in set_pwm()
341 		data->dac = 180 - (180 * pwm)/255;  in set_pwm()
343 		data->dac = 76 - (76 * pwm)/255;  in set_pwm()