PCI-WDT500/501 watchdog timer device
wdt0 at pci?
driver provides support for the Industrial
Computer Source PCI-WDT500 and PCI-WDT501 boards.
For PCI-WDT500 boards, basic watchdog timer functionality is supported. For
PCI-WDT501 boards, the onboard buzzer will sound when the watchdog counter
expires. The sensors are not yet supported.
If the kernel crashes, the watchdog timer is not reset and the system will
reboot (assuming a proper connection is made between the WDT50x and
motherboard). Alternatively, the watchdog can be reinitialized via a userland
process which ensures that process scheduling, not just kernel timeout
processing, is still taking place. See
The timer can be configured to have a timeout from 2 to 1800 seconds.
driver first appeared in