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/share/man/man4/vpo.4

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  1.\" Copyright (c) 1998, 1999, Nicolas Souchu
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 25.\" $FreeBSD$
 26.\"
 27.Dd December 14, 2004
 28.Dt VPO 4
 29.Os
 30.Sh NAME
 31.Nm vpo
 32.Nd parallel to SCSI interface driver
 33.Sh SYNOPSIS
 34.Cd "device vpo"
 35.Pp
 36For one or more SCSI busses:
 37.Cd "device scbus"
 38.Sh DESCRIPTION
 39The
 40.Nm
 41driver provide access to parallel port Iomega Zip and Jaz drives.
 42.Sh HARDWARE
 43The
 44.Nm
 45driver supports the following parallel to SCSI interfaces:
 46.Pp
 47.Bl -bullet -compact
 48.It
 49Adaptec AIC-7110 Parallel to SCSI interface (built-in to Iomega ZIP
 50drives)
 51.It
 52Iomega Jaz Traveller interface
 53.It
 54Iomega MatchMaker SCSI interface (built-in to Iomega ZIP+ drives)
 55.El
 56.Sh USAGE
 57The driver should let you use a printer connected to the drive while
 58transferring data.
 59.Pp
 60DOS and
 61.Fx
 62file systems are supported.
 63When mounting a DOS file system or
 64formatting a
 65.Fx
 66file system, check the slice of the disk with the
 67.Xr fdisk 8
 68utility.
 69.Pp
 70In order to unixify a ZIP disk, put the following in /etc/disktab:
 71.Bd -literal
 72zip|zip 100:\\
 73        :ty=removable:se#512:nc#96:nt#64:ns#32:\\
 74        :pa#196608:oa#0:ba#4096:fa#512:\\
 75        :pb#196608:ob#0:bb#4096:fb#512:\\
 76        :pc#196608:oc#0:bc#4096:fc#512:
 77.Ed
 78.Pp
 79and use
 80.Xr bsdlabel 8 .
 81.Pp
 82If you have trouble with your driver, your parallel chipset may not run
 83properly at the detected mode (NIBBLE, PS2 or EPP).
 84Tune the
 85.Xr ppc 4
 86bootflags to force other modes.
 87.Sh SEE ALSO
 88.Xr da 4 ,
 89.Xr lpt 4 ,
 90.Xr ppbus 4 ,
 91.Xr ppc 4 ,
 92.Xr scsi 4
 93.Sh HISTORY
 94The
 95.Nm
 96manual page first appeared in
 97.Fx 3.0 .
 98.Sh AUTHORS
 99This
100manual page was written by
101.An Nicolas Souchu .
102.Sh BUGS
103During boot, the driver first tries to detect a classic ZIP, then a ZIP+.
104The ZIP+ detection is intrusive and may send erroneous characters to your
105printer if the drive is not connected to your parallel port.