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4 .\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
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6 .TH NTWDT 7D "Feb 05, 2005"
8 ntwdt \- Netra\(embased application watchdog timer driver
18 The \fBntwdt\fR driver is a multithreaded, loadable, non-STREAMS pseudo driver
19 that provides an application with an interface for controlling a system
23 The \fBntwdt\fR driver implements a \fBvirtual watchdog timer\fR that a
24 privileged application (Effective UID == 0) controls via IOCTLs.
28 You configure the \fBntwdt\fR driver by modifying the contents of the
29 \fBntwdt.conf\fR file.
33 An \fBopen()\fR fails if:
40 Effective user ID is not zero.
49 \fB/dev/ntwdt\fR is not present or driver is not installed.
58 \fB/dev/ntwdt\fR has already been successfully open()'d.
68 Special character device.
74 \fBkernel/drv/sparcv9/ntwdt\fR
77 SPARC ntwdt driver binary.
83 \fBkernel/drv/ntwdt.conf\fR
86 Driver configuraton file.
92 See \fBattributes\fR(5) for descriptions of the following attributes:
100 ATTRIBUTE TYPE ATTRIBUTE VALUE
108 \fBdriver.conf\fR(4), \fBattributes\fR(5)
111 \fIWriting Device Drivers\fR