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VPO(4)			     Kernel Interfaces Manual			  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 Iomega Zip and Jaz drives.

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 trans-
     ferring data.

     DOS and FreeBSD file systems are supported.  When mounting a DOS file  sys-
     tem  or  formatting 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=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) boot-
     flags 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.

FreeBSD 9.1			December 14, 2004			  VPO(4)
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