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79 lines
2.7 KiB
Groff
79 lines
2.7 KiB
Groff
.\"
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.\" Copyright (c) 2002 M. Warner Losh
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. The name of the author may not be used to endorse or promote products
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.\" derived from this software without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd July 9, 2002
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.Dt PCCARD 4
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.Os
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.Sh NAME
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.Nm pccard
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.Nd PC Card bus driver
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.Sh SYNOPSIS
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.Cd device pccard
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.Sh DESCRIPTION
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The
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.Nm
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driver implements the PC Card bus.
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The
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.Nm
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driver supports all PC Card bridges in the system.
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.Sh TUNABLES
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The driver supports the following tunable parameters, which may be
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added to
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.Pa /boot/loader.conf
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or set via the
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.Xr sysctl 8
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command:
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.Bl -tag -width ".Cm hw.pccard.cis_debug" -compact
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.It Cm hw.pccard.debug
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Non-zero values cause more verbose information to be printed when a
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16-bit PC Card is inserted or removed.
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.It Cm hw.pccard.cis_debug
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Non-zero value causes the CIS parsing of the 16-bit PC Card to be much
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more verbose and include a complete CIS dump.
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.El
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.Sh FILES
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.Bl -tag -width ".Pa /dev/pccard0.cis" -compact
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.It Pa /dev/pccard0.cis
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This exclusive-use device will report all the CIS chains present in a
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PC Card, if a 16-bit PC Card is inserted in the slot.
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Only one user at a time may access the CIS.
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The CIS is presented as the relevant byte stream from the PC Card.
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For CIS tuples in Attribute Memory (the default), only the even
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locations are presented (the ODD locations are undefined per the
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standard).
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For CIS tuples in Common Memory, every byte is presented to the user.
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Decoding of the CIS tuples is done via a userland program.
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All tuples are presented to the user.
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.El
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.Sh SEE ALSO
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.Xr cardbus 4 ,
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.\" .Xr mecia 4 ,
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.Xr pccbb 4
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.\" .Xr tcic 4
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.Rs
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.%T "PC Card Standard, Release 8"
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.Re
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