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.\" $FreeBSD: src/share/man/man4/gpib.4,v 1.2.2.4.4.1 2010/12/21 17:09:25 kensmith Exp $
.\"
.Dd January 24, 2010
.Dt GPIB 4
.Os
.Sh NAME
.Nm gpib
.Nd General-Purpose Instrument Bus (GPIB) driver
.Sh SYNOPSIS
Either of the
.Xr pcii 4
or
.Xr tnt4882 4
drivers use this driver as the backend.
.Sh DESCRIPTION
The
.Nm
driver provides support for driving an IEEE-488 bus, also called
IEC-625 (or just "IEC bus"), or HP-IB (Hewlett Packard Instrument
Bus), or GPIB (General Purpose Instrument Bus).
The device can become either a listener, talker, controller, and
in particular a master controller on the bus.
.Sh FILES
.Bl -tag -width /dev/gpibNNib
.It Pa /dev/gpib Ns Em N Ns "ib"
Main device node to access the driver.
.It Pa /dev/gpib Ns Em N Ns "l"
Listen-only entry to the driver.
When opening, an instrument can send data to this device on the
bus in an unaddressed mode, for example hard-copy printer data.
.El
.Sh SEE ALSO
.Xr gpib 3 ,
.Xr pcii 4 ,
.Xr tnt4882 4
.Sh HISTORY
The
.Nm
driver was written by Poul-Henning Kamp, and first appeared in
.Fx 5.4 .
.Sh AUTHORS
This manual page was written by
.An J\(:org Wunsch .