Re: [PATCH] selftests: watchdog: Add optional file argument

Hi George,

On Thu, Aug 29, 2019 at 12:39:25AM -0400, George G. Davis wrote:

Some systems have multiple watchdog devices where the first device registered is assigned to the /dev/watchdog device file.

Confirmed on R-Car H3-Salvator-X:

root@rcar-gen3:~# ls -al /dev/watchdog* crw------- 1 root root 10, 130 Aug 21 09:38 /dev/watchdog crw------- 1 root root 247, 0 Aug 21 09:38 /dev/watchdog0

[..]

• fd = open("/dev/watchdog", O_WRONLY);

• while ((c = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {

• if (c == 'f')
  

• 	file = optarg;
  

• }
• fd = open(file, O_WRONLY);

Would it be possible to improve below not so helpful and slightly misleading printout:

$ ./watchdog-test -d -t 10 -p 5 -e -f /dev/watch Watchdog device not enabled.

Thanks!