vpo(4)

NAME

vpo - parallel to SCSI interface driver

SYNOPSIS

device vpo
For one or more SCSI busses:
device scbus

DESCRIPTION

The vpo driver provide access to parallel port Iomage Zip

and Jaz drives.

HARDWARE

The vpo driver supports the following parallel to SCSI in

terfaces:

+o Adaptec AIC-7110 Parallel to SCSI interface (built-in to

Iomega ZIP

drives)

+o Iomega Jaz Traveller interface
+o 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 FreeBSD file systems are supported. When mounting a

DOS file
system or formating a FreeBSD 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=remov

able: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 vpo manual page first appeared in FreeBSD 3.0.

AUTHORS

This manual page was written by 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 char

acters to your
printer if the drive is not connected to your parallel port.

BSD December 14, 2004

BSD