ntwdt(7D) ntwdt(7D)
NAME
ntwdt - Netra--based application watchdog timer driver
SYNOPSIS
/dev/ntwdt
The ntwdt driver is a multithreaded, loadable, non-STREAMS pseudo driver that provides an application with an interface for controlling a
system watchdog timer.
The ntwdt driver implements a virtual watchdog timer that a privileged application (Effective UID == 0) controls via IOCTLs.
CONFIGURATION
You configure the ntwdt driver by modifying the contents of the ntwdt.conf file.
ERRORS
An open() fails if:
EPERM Effective user ID is not zero.
ENOENT /dev/ntwdt is not present or driver is not installed.
EAGAIN /dev/ntwdt has already been successfully open()'d.
FILES
/dev/ntwdt
Special character device.
kernel/drv/sparcv9/ntwdt
SPARC ntwdt driver binary.
kernel/drv/ntwdt.conf
Driver configuraton file.
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcakr.u |
+-----------------------------+-----------------------------+
|Architecture |SPARC |
+-----------------------------+-----------------------------+
driver.conf(4), attributes(5)
Writing Device Drivers
05 Feb 2005 ntwdt(7D)