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Man Pages


Manual Reference Pages  -  PT (4)

NAME

pt - SCSI processor type driver

CONTENTS

Synopsis
Description
Ioctls
Files
See Also
History

SYNOPSIS


.Cd device pt

DESCRIPTION

The pt driver provides support for a SCSI processor type device. These are usually scanners and other devices using the SCSI link as a communication interface with device specific commands embedded in the data stream.

A SCSI adapter must be separately configured into the system before this driver can be used.

This device supports read(2) and write(2), and the ioctl(2) calls described below.

IOCTLS

The following ioctl(2) calls are supported by the pt driver. They are defined in the header file
.In sys/ptio.h .
PTIOCGETTIMEOUT
  This ioctl allows userland applications to fetch the current pt driver read and write timeout. The value returned is in seconds.
PTIOCSETTIMEOUT
  This ioctl allows userland applications to set the current pt driver read and write timeouts. The value should be in seconds.

FILES

/dev/pt N the N th processor device.

SEE ALSO

cam(4)

HISTORY

The pt driver appeared in
.Fx 2.1 .
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