pwdog(4) - NetBSD Manual Pages

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PWDOG(4)                NetBSD Kernel Interfaces Manual               PWDOG(4)


NAME

     pwdog -- Quancom PWDOG1 watchdog timer device


SYNOPSIS

     pwdog0 at pci?


DESCRIPTION

     The pwdog driver provides support for Quancom PWDOG1 boards.

     If the kernel crashes, the watchdog timer is not reset and the system
     will reboot (assuming a proper connection is made between the PWDOG1 and
     the 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.

     The timeout period of the PWDOG1 card is set using DIP switches and can-
     not be changed by software.


SEE ALSO

     intro(4), pci(4)


HISTORY

     The pwdog driver first appeared in OpenBSD 4.1 and NetBSD 6.0.


AUTHORS

     The pwdog driver was written by Marc Balmer <mbalmer@NetBSD.org>.

NetBSD 9.2                      August 11, 2011                     NetBSD 9.2