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 Iomega Zip and Jaz drives.

DEPRECATION NOTICE

       The vpo driver is not present in FreeBSD 13.0 and later.

HARDWARE

       The vpo 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 FreeBSD file systems are supported.  When mounting a DOS file system or formatting a FreeBSD file
       system, check the slice of the disk with the gpart(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 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  characters  to  your  printer if the drive is not connected to your
       parallel port.

Debian                                          December 21, 2019                                         VPO(4)