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
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=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.