---
name: "ihfc"
section: "4"
platform: "linux"
package: "freebsd-manpages"
version: "6.0-5"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/ihfc"
---

# ihfc(4)

isdn4bsd ISA Cologne Chip HFC\[-S\]\[-SP\] 2B\[DS0\] driver

## NAME

**ihfc** – isdn4bsd ISA Cologne Chip HFC\[-S\]\[-SP\] 2B\[DS0\] driver

## SYNOPSIS

**device ihfc**

NOTE:

Something like: hint.ihfc.0.at="isa" must be added to */boot/device.hints* The driver will automatically probe for io-base and irq.

## DESCRIPTION

The **ihfc** driver provides D-channel layer 1 supports as specified in ITU Recommendation I.430 and layer 1 support for the B-channel.

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.

## CAVEATS

The driver is still in an experimental state.

## SEE ALSO

[i4bq921(4)](/i4bq921/4.md), [i4bq931(4)](/i4bq931/4.md)

## STANDARDS

CCITT Recommendation I.430

## AUTHORS

The **ihfc** driver was written by Hans Petter Selasky ⟨hselasky@c2i.net⟩.

This manpage was written by Hellmuth Michaelis ⟨hm@FreeBSD.org⟩.

## BUGS

Always at least one left.