247 …nt clamp_brightness(sd_device *device, bool saved, unsigned max_brightness, unsigned *brightness) {  in clamp_brightness()  argument
253         assert(brightness);  in clamp_brightness()
269         new_brightness = CLAMP(*brightness, min_brightness, max_brightness);  in clamp_brightness()
270         if (new_brightness != *brightness)  in clamp_brightness()
273                                 *brightness,  in clamp_brightness()
274                                 new_brightness > *brightness ?  in clamp_brightness()
278         *brightness = new_brightness;  in clamp_brightness()
306         unsigned brightness;  in read_brightness()  local
326                 r = safe_atou(value, &brightness);  in read_brightness()
333                 if (brightness > max_brightness) {  in read_brightness()
335 …                            "fall back to use 'brightness' attribute", brightness, max_brightness);  in read_brightness()
339                 log_device_debug(device, "Current actual_brightness is %u", brightness);  in read_brightness()
340                 *ret_brightness = brightness;  in read_brightness()
349         r = safe_atou(value, &brightness);  in read_brightness()
353         if (brightness > max_brightness)  in read_brightness()
356                                               brightness, max_brightness);  in read_brightness()
358         log_device_debug(device, "Current brightness is %u", brightness);  in read_brightness()
359         *ret_brightness = brightness;  in read_brightness()
367         unsigned max_brightness, brightness;  in run()  local
461                         r = safe_atou(value, &brightness);  in run()
467                                 log_debug("Using saved brightness %u.", brightness);  in run()
469 …                                (void) clamp_brightness(device, true, max_brightness, &brightness);  in run()
481                         r = read_brightness(device, max_brightness, &brightness);  in run()
485                         (void) clamp_brightness(device, false, max_brightness, &brightness);  in run()
488                 r = sd_device_set_sysattr_valuef(device, "brightness", "%u", brightness);  in run()
498                 r = read_brightness(device, max_brightness, &brightness);  in run()
502                 r = write_string_filef(saved, WRITE_STRING_FILE_CREATE, "%u", brightness);  in run()