Can we audit writing to character device?

Hello. I tried to audit write syscall on /dev/watchdog in order to check https://access.redhat.com/site/solutions/707563 . I expected that I can do it using # auditctl -a exit,always -F filetype=character -F devmajor=10 -F devminor=130 -F arch=b64 -S write -k watchdog but it did not work (even # auditctl -a exit,always -F filetype=character -F arch=b64 -S write -k watchdog did not work). Is this functionality not implemented? Should I do # stap -d hpwdt -e 'probe module("hpwdt").function("hpwdt_ping") { printf("%u\n", gettimeofday_ns()); }' instead (if I can't use this functionality) ? Regards.