From: Randy Dunlap Date: Sat, 28 Feb 2026 01:03:59 +0000 (-0800) Subject: docs: watchdog: pcwd: fix typo and driver info. X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=996b4434be0364865e44d1ef3eed67df5fd8ce50;p=thirdparty%2Flinux.git docs: watchdog: pcwd: fix typo and driver info. Correct a typo and some technical info for the pcwd driver. Signed-off-by: Randy Dunlap Reviewed-by: Guenter Roeck Signed-off-by: Jonathan Corbet Message-ID: <20260228010402.2389343-3-rdunlap@infradead.org> --- diff --git a/Documentation/watchdog/pcwd-watchdog.rst b/Documentation/watchdog/pcwd-watchdog.rst index 151505c856f63..5cd45abe246a6 100644 --- a/Documentation/watchdog/pcwd-watchdog.rst +++ b/Documentation/watchdog/pcwd-watchdog.rst @@ -29,7 +29,7 @@ Documentation and Driver by Ken Hollis to run the program with an "&" to run it in the background!) If you want to write a program to be compatible with the PC Watchdog - driver, simply use of modify the watchdog test program: + driver, simply use or modify the watchdog test program: tools/testing/selftests/watchdog/watchdog-test.c @@ -37,16 +37,23 @@ Documentation and Driver by Ken Hollis WDIOC_GETSUPPORT This returns the support of the card itself. This - returns in structure "PCWDS" which returns: + returns in structure watchdog_info: + + identity = "PCWD" + + options = list of supported options:: + WDIOF_OVERHEAT + WDIOF_CARDRESET + WDIOF_KEEPALIVEPING + WDIOF_SETTIMEOUT + WDIOF_MAGICCLOSE - options = WDIOS_TEMPPANIC - (This card supports temperature) firmware_version = xxxx (Firmware version of the card) WDIOC_GETSTATUS This returns the status of the card, with the bits of - WDIOF_* bitwise-anded into the value. (The comments + WDIOF_* bitwise-ored into the value. (The comments are in include/uapi/linux/watchdog.h) WDIOC_GETBOOTSTATUS @@ -55,7 +62,7 @@ Documentation and Driver by Ken Hollis WDIOC_GETTEMP This returns the temperature of the card. (You can also - read /dev/watchdog, which gives a temperature update + read /dev/temperature, which gives a temperature update every second.) WDIOC_SETOPTIONS