Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
26 lines
382 B
C
26 lines
382 B
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
|
|
int main(void)
|
|
{
|
|
int fd = open("/dev/watchdog", O_WRONLY);
|
|
int ret = 0;
|
|
if (fd == -1) {
|
|
perror("watchdog");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
while (1) {
|
|
ret = write(fd, "\0", 1);
|
|
if (ret != 1) {
|
|
ret = -1;
|
|
break;
|
|
}
|
|
sleep(10);
|
|
}
|
|
close(fd);
|
|
return ret;
|
|
}
|