xref: /titanic_41/usr/src/man/man7d/ntwdt.7d (revision 7535ae1914017b0e648abd7a139aca709fa82be3)
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NTWDT 7D "Feb 05, 2005"
NAME
ntwdt - Netra\(embased application watchdog timer driver
SYNOPSIS

/dev/ntwdt
DESCRIPTION

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.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Architecture SPARC
SEE ALSO

driver.conf(4), attributes(5)

Writing Device Drivers