74 	int fd, bytes, amt, ret = 0;  in write_brightness()  local
76 	bytes = snprintf(path, sizeof(path), "%s/brightness",  in write_brightness()
78 	if (bytes < 0 || (size_t)bytes >= sizeof(path)) {  in write_brightness()
80 			  "failed to create brightness path %d\n", bytes);  in write_brightness()
91 	bytes = snprintf(buffer, sizeof(buffer), "%d\n", brightness);  in write_brightness()
92 	if (bytes < 0 || (size_t)bytes >= sizeof(buffer)) {  in write_brightness()
95 			  brightness, bytes);  in write_brightness()
99 	amt = write(fd, buffer, bytes);  in write_brightness()
100 	if (amt != bytes) {  in write_brightness()
103 			  bytes);  in write_brightness()
116 	int ret = 0, fd, bytes;  in read_max_brightness()  local
118 	bytes = snprintf(path, sizeof(path), "%s/max_brightness",  in read_max_brightness()
120 	if (bytes < 0 || (size_t)bytes >= sizeof(path)) {  in read_max_brightness()
122 			  "failed to create max_brightness path %d\n", bytes);  in read_max_brightness()
133 	bytes = read(fd, buffer, sizeof(buffer));  in read_max_brightness()
134 	if (bytes <= 0) {  in read_max_brightness()