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PT(4) BSD Kernel Interfaces Manual PT(4) NAME pt -- SCSI processor type driver SYNOPSIS 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 communi- cation 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 de- scribed below. IOCTLS The following ioctl(2) calls are supported by the pt driver. They are defined in the header file <sys/ptio.h>. PTIOCGETTIMEOUT This ioctl allows userland applications to fetch the current pt driver read and write timeout. The value re- turned is in seconds. PTIOCSETTIMEOUT This ioctl allows userland applications to set the cur- rent pt driver read and write timeouts. The value should be in seconds. FILES /dev/ptN the Nth processor device. SEE ALSO scsi(4) HISTORY The pt driver appeared in FreeBSD 2.1. BSD March 2, 1995 BSD
NAME | SYNOPSIS | DESCRIPTION | IOCTLS | FILES | SEE ALSO | HISTORY
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