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+title: Linux keyboard LED
+keywords: linux,keyboard,led
+
+# Linux keyboard LED
+Send some bytes and flash LED on you keyboards.Run it under root.
+There will no be any errors if something happens.
+
+Usage:
+```
+./kbled [NumLock] [CapsLock] [ScrLock]
+```
+```
+./kbled 0 0 0
+```
+
+```c
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/syscall.h>
+#include <linux/kd.h>
+ 
+int main( int argc , char **argv )
+{
+    int rc,i;
+    if (argc != 4) exit(0);
+ 
+    rc = syscall(SYS_open,"/dev/console",O_WRONLY,7*64+7*8+7); //open cosole
+    if (rc == 0) rc = 1;
+     
+    i = (argv[1][0]-'0')*2+(argv[2][0]-'0')*4+(argv[3][0]-'0');
+    ioctl( rc , KDSETLED , i );
+     
+    return 0;
+}
+```
+
+
+
+
+## Downloads
+kbled.tar.gz -
+1KiB - http://archive.main.lv/files/writeup/linux_keyboard_led/kbled.tar.gz
+