[PATCH 1/2] tools/leds: Add '-h' & '--help' cmd line options to uledmon

From: Rajkumar Vadhyar
Date: Tue Aug 20 2024 - 03:24:09 EST


Add '-h' and '--help' command line options to uledmon

Signed-off-by: Rajkumar Vadhyar <rajkumarvad@xxxxxxxxx>
---
tools/leds/uledmon.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/tools/leds/uledmon.c b/tools/leds/uledmon.c
index c15a39c1f271..6609235d80b0 100644
--- a/tools/leds/uledmon.c
+++ b/tools/leds/uledmon.c
@@ -11,6 +11,8 @@
* CTRL+C will exit.
*/

+#define ULEDMON_USAGE "Usage: ./uledmon <device-name>\n"
+
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
@@ -19,6 +21,7 @@

#include <linux/uleds.h>

+
int main(int argc, char const *argv[])
{
struct uleds_user_dev uleds_dev;
@@ -30,6 +33,10 @@ int main(int argc, char const *argv[])
fprintf(stderr, "Requires <device-name> argument\n");
return 1;
}
+ if (!(strcmp(argv[1], "-h")) || !(strcmp(argv[1], "--help"))) {
+ fprintf(stderr, ULEDMON_USAGE);
+ return 1;
+ }

strncpy(uleds_dev.name, argv[1], LED_MAX_NAME_SIZE);
uleds_dev.max_brightness = 100;
--
2.40.1