82 lines
2.3 KiB
Groff
82 lines
2.3 KiB
Groff
.\" $NetBSD: mcd.4,v 1.8 2001/09/11 22:52:53 wiz Exp $
|
|
.\"
|
|
.\" Copyright (c) 1994 James A. Jegers
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. The name of the author may not be used to endorse or promote products
|
|
.\" derived from this software without specific prior written permission
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
.\"
|
|
.\"
|
|
.Dd November 29, 1994
|
|
.Dt MCD 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm mcd
|
|
.Nd Mitsumi CD-ROM driver
|
|
.Sh SYNOPSIS
|
|
.Cd "mcd0 at isa? port 0x300 irq 10"
|
|
.Cd "options MCD_PROMISC"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for
|
|
.Tn Mitsumi
|
|
.Tn CD-ROM
|
|
controller and drive on the
|
|
.Xr isa 4
|
|
bus.
|
|
.Pp
|
|
.Sh FILES
|
|
.Bl -tag -width /dev/rmcd[0-9][a-h] -compact
|
|
.It Pa /dev/cd[0-9][a-h]
|
|
block mode Mitsumi
|
|
.Tn CD-ROM
|
|
devices
|
|
.It Pa /dev/rmcd[0-9][a-h]
|
|
raw mode Mitsumi
|
|
.Tn CD-ROM
|
|
devices
|
|
.El
|
|
.Sh BUGS
|
|
The
|
|
.Nm
|
|
hardware is difficult to probe accurately.
|
|
Historically, the
|
|
.Nm
|
|
probe would accept any return values as indicating that an
|
|
.Nm
|
|
drive was present. Other devices, particularly
|
|
.Xr ne 4
|
|
or
|
|
.Xr we 4 ,
|
|
would then be incorrectly claimed by the
|
|
.Nm
|
|
driver. The driver now only accepts result codes known to indicate
|
|
Mitsumi-compatible CD controllers, but may reject some
|
|
.Nm
|
|
hardware which returns other result codes.
|
|
.Pp
|
|
.Cd "options MCD_PROMISC"
|
|
enables the original promiscuous probe behaviour. Use with extreme caution.
|
|
.Sh SEE ALSO
|
|
.Xr intro 4 ,
|
|
.Xr isa 4 ,
|
|
.Xr ne 4 ,
|
|
.Xr we 4
|