vpo (4)

Leading comments

Copyright (c) 1998, 1999, Nicolas Souchu
All rights reserved.

Redistribution and use in source and binary forms, with or without
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(The comments found at the beginning of the groff file "man4/vpo.4freebsd".)

NAME

vpo - parallel to SCSI interface driver

SYNOPSIS

device vpo

For one or more SCSI busses: device scbus

DESCRIPTION

The ifconfig driver provide access to parallel port Iomega Zip and Jaz drives.

HARDWARE

The ifconfig driver supports the following parallel to SCSI interfaces:

• Adaptec AIC-7110 Parallel to SCSI interface (built-in to Iomega ZIP drives)
• Iomega Jaz Traveller interface
• Iomega MatchMaker SCSI interface (built-in to Iomega ZIP+ drives)

USAGE

The driver should let you use a printer connected to the drive while transferring data.

DOS and Fx file systems are supported. When mounting a DOS file system or formatting a Fx file system, check the slice of the disk with the fdisk(8) utility.

In order to unixify a ZIP disk, put the following in /etc/disktab:

zip|zip 100:\
        :ty=removable:se#512:nc#96:nt#64:ns#32:\
        :pa#196608:oa#0:ba#4096:fa#512:\
        :pb#196608:ob#0:bb#4096:fb#512:\
        :pc#196608:oc#0:bc#4096:fc#512:

and use bsdlabel(8).

If you have trouble with your driver, your parallel chipset may not run properly at the detected mode (NIBBLE, PS2 or EPP). Tune the ppc(4) bootflags to force other modes.

SEE ALSO

da(4), lpt(4), ppbus(4), ppc(4), scsi(4)

HISTORY

The ifconfig manual page first appeared in Fx 3.0 .

AUTHORS

This manual page was written by An Nicolas Souchu .

BUGS

During boot, the driver first tries to detect a classic ZIP, then a ZIP+. The ZIP+ detection is intrusive and may send erroneous characters to your printer if the drive is not connected to your parallel port.