1 files changed, 15 insertions, 0 deletions

diff --git a/Documentation/watchdog/src/watchdog-simple.c b/Documentation/watchdog/src/watchdog-simple.c
new file mode 100644
index 000000000000..85cf17c48669
--- /dev/null
+++ b/Documentation/watchdog/src/watchdog-simple.c
@@ -0,0 +1,15 @@
+#include <stdlib.h>
+#include <fcntl.h>
+
+int main(int argc, const char *argv[]) {
+        int fd = open("/dev/watchdog", O_WRONLY);
+        if (fd == -1) {
+                perror("watchdog");
+                exit(1);
+        }
+        while (1) {
+                write(fd, "\0", 1);
+                fsync(fd);
+                sleep(10);
+        }
+}