[PATCH 2/2] tools/leds: Add '-h' & '--help' cmd options to led_hw_brightness_mon
From: Rajkumar Vadhyar
Date: Tue Aug 20 2024 - 03:24:20 EST
Add '-h' and '--help' command line options to led_hw_brightness_mon
Signed-off-by: Rajkumar Vadhyar <rajkumarvad@xxxxxxxxx>
---
tools/leds/led_hw_brightness_mon.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/tools/leds/led_hw_brightness_mon.c b/tools/leds/led_hw_brightness_mon.c
index eb65ae988839..712a4f8edb98 100644
--- a/tools/leds/led_hw_brightness_mon.c
+++ b/tools/leds/led_hw_brightness_mon.c
@@ -12,6 +12,7 @@
* CTRL+C will exit.
*/
+#define USAGE_LED_HW_BRIGHTNESS_MON "Usage: ./led_hw_brightness_mon <device-name>\n"
#include <errno.h>
#include <fcntl.h>
#include <poll.h>
@@ -36,6 +37,11 @@ int main(int argc, char const *argv[])
return 1;
}
+ if (!(strcmp(argv[1], "-h")) || !(strcmp(argv[1], "--help"))) {
+ fprintf(stderr, USAGE_LED_HW_BRIGHTNESS_MON);
+ return 1;
+ }
+
snprintf(brightness_file_path, LED_MAX_NAME_SIZE,
"/sys/class/leds/%s/brightness_hw_changed", argv[1]);
--
2.40.1