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

# ifpi(4)

isdn4bsd AVM Fritz!Card PCI Version 1 driver

## NAME

**ifpi** – isdn4bsd AVM Fritz!Card PCI Version 1 driver

## SYNOPSIS

**device** **ifpi**

## DESCRIPTION

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

The driver supports passive PCI ISDN Version 1.0 cards from AVM based on the proprietary B-channel controller and PCI interface chip from AVM, Berlin, Germany.

## CAVEATS

The driver is still in a somewhat experimental state.

## SEE ALSO

[i4bq921(4)](/i4bq921/4.md), [i4bq931(4)](/i4bq931/4.md), [ifpi2(4)](/ifpi2/4.md)

## STANDARDS

CCITT Recommendation I.430

## AUTHORS

The **ifpi** driver was written by Gary Jennejohn ⟨gj@FreeBSD.org⟩.

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

## BUGS

Always at least one left.