.\"
.\" Copyright (c) 2002-2003 M. Warner Losh <imp@FreeBSD.org>
.\"
.\" 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.
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.\"    derived from this software without specific prior written permission.
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" SUCH DAMAGE.
.\"
.Dd July 21, 2004
.Dt PCCBB 4
.Os
.Sh NAME
.Nm pccbb
.Nd cardbus bridge driver
.Sh SYNOPSIS
.Cd device cbb
.Cd device pccard
.Cd device cardbus
.Cd device exca
.Sh DESCRIPTION
The
.Nm
driver implements the Yenta specification for CardBus bridges.
.Pp
The following PCI cardbus and pcmcia bridges are supported:
.Pp
.Bl -item -compact
.It
Cirrus Logic PD6832
.It
Cirrus Logic PD6833
.It
Cirrus Logic PD6834
.Pp
.It
O2micro OZ6812
.It
O2micro OZ6832
.It
O2micro OZ6833
.It
O2micro OZ6836
.It
O2micro OZ6860
.It
O2micro OZ6872
.It
O2micro OZ6912
.It
O2micro OZ6922
.It
O2micro OZ6933
.It
O2micro OZ6972
.It
O2Micro OZ711E1
.It
O2Micro OZ711M1
.El
.Bl -item -compact
.It
Ricoh RL4C475
.It
Ricoh RL4C476
.It
Ricoh RL4C477
.It
Ricoh RL4C478
.Pp
.It
TI PCI-1031
.It
TI PCI-1130
.It
TI PCI-1131
.It
TI PCI-1210
.It
TI PCI-1211
.It
TI PCI-1220
.It
TI PCI-1221
.It
TI PCI-1225
.It
TI PCI-1250
.It
TI PCI-1251
.It
TI PCI-1251B
.It
TI PCI-1260
.It
TI PCI-1260B
.It
TI PCI-1410
.It
TI PCI-1420
.It
TI PCI-1450
.It
TI PCI-1451
.It
TI PCI-1510
.It
TI PCI-1515
.It
TI PCI-1520
.It
TI PCI-1530
.It
TI PCI-1620
.It
TI PCI-4410
.It
TI PCI-4450
.It
TI PCI-4451
.It
TI PCI-4510
.It
TI PCI-4520
.It
TI PCI-[67]x[12]1
.It
TI PCI-[67]x20
.It
ENE CB710
.It
ENE CB720
.It
ENE CB1211
.It
ENE CB1255
.It
ENE CB1410
.It
ENE CB1420
.Pp
.It
Toshiba ToPIC95
.It
Toshiba ToPIC95B
.It
Toshiba ToPIC97
.It
Toshiba ToPIC100
.El
.Sh TUNABLES
The driver supports the following tunable parameters, which may be
added to
.Pa /boot/loader.conf
or set via the
.Xr sysctl 8
command:
.Bl -tag -width ".Cm hw.cbb.debug" -compact
.It Cm hw.cbb.debug
Non-zero values cause more verbose information to be printed to aid in
debugging problems with the bridge chipset.
.El
.Sh SEE ALSO
.Xr cardbus 4 ,
.Xr exca 4 ,
.Xr pccard 4