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Diffstat (limited to 'Documentation/watchdog/pcwd-watchdog.txt')
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diff --git a/Documentation/watchdog/pcwd-watchdog.txt b/Documentation/watchdog/pcwd-watchdog.txt deleted file mode 100644 index b8e60a441a43..000000000000 --- a/Documentation/watchdog/pcwd-watchdog.txt +++ /dev/null @@ -1,66 +0,0 @@ -Last reviewed: 10/05/2007 - - Berkshire Products PC Watchdog Card - Support for ISA Cards Revision A and C - Documentation and Driver by Ken Hollis <kenji@bitgate.com> - - The PC Watchdog is a card that offers the same type of functionality that - the WDT card does, only it doesn't require an IRQ to run. Furthermore, - the Revision C card allows you to monitor any IO Port to automatically - trigger the card into being reset. This way you can make the card - monitor hard drive status, or anything else you need. - - The Watchdog Driver has one basic role: to talk to the card and send - signals to it so it doesn't reset your computer ... at least during - normal operation. - - The Watchdog Driver will automatically find your watchdog card, and will - attach a running driver for use with that card. After the watchdog - drivers have initialized, you can then talk to the card using a PC - Watchdog program. - - I suggest putting a "watchdog -d" before the beginning of an fsck, and - a "watchdog -e -t 1" immediately after the end of an fsck. (Remember - 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: - tools/testing/selftests/watchdog/watchdog-test.c - - - Other IOCTL functions include: - - WDIOC_GETSUPPORT - This returns the support of the card itself. This - returns in structure "PCWDS" which returns: - 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 - are in linux/pcwd.h) - - WDIOC_GETBOOTSTATUS - This returns the status of the card that was reported - at bootup. - - WDIOC_GETTEMP - This returns the temperature of the card. (You can also - read /dev/watchdog, which gives a temperature update - every second.) - - WDIOC_SETOPTIONS - This lets you set the options of the card. You can either - enable or disable the card this way. - - WDIOC_KEEPALIVE - This pings the card to tell it not to reset your computer. - - And that's all she wrote! - - -- Ken Hollis - (kenji@bitgate.com) - |