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.\" $FreeBSD$
.\"
.\"	last edit-date: [Sun Jul 28 16:47:55 2002]
.\"
.Dd July 28, 2002
.Dt IHFC 4
.Os
.Sh NAME
.Nm ihfc
.Nd isdn4bsd ISA Cologne Chip HFC[-S][-SP] 2B[DS0] driver
.Sh SYNOPSIS
.Cd "device ihfc"
.Pp
NOTE:
.Pp
Something like:
.Li hint.ihfc.0.at="isa"
must be added to
.Pa /boot/device.hints
The driver will automatically probe for io-base and irq.
.Sh DESCRIPTION
The
.Nm
driver provides D-channel layer 1 supports as specified in ITU Recommendation
I.430 and layer 1 support for the B-channel.
.Pp
The driver supports some passive ISA ISDN cards based on the
HFC[-S][-SP] 2B[DS0] chips from Cologne Chip, currently this are the
Teles 16.3c ISA PnP, the AcerISDN P10 ISA PnP and the TELEINT ISDN SPEED No.1.
.Sh CAVEATS
The driver is still in an experimental state.
.Sh BUGS
Always at least one left.
.Sh STANDARDS
CCITT Recommendation I.430
.Sh SEE ALSO
.Xr i4bq921 4 ,
.Xr i4bq931 4
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An Hans Petter Selasky Aq hselasky@c2i.net .
.Pp
This manpage was written by
.An Hellmuth Michaelis Aq hm@FreeBSD.org .