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

# cp(4)

driver for synchronous Cronyx Tau-PCI WAN adapters

## NAME

**cp** – driver for synchronous Cronyx Tau-PCI WAN adapters

## SYNOPSIS

To compile support for the

**cp** driver into your kernel, place the following line in your kernel configuration file:

**device cp**

Alternatively, to load the

**cp** driver at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
if_cp_load="YES"
```

Additional options: **device sppp** **options NETGRAPH** **options NETGRAPH\_CRONYX**

## DESCRIPTION

The **cp** driver needs either [sppp(4)](/sppp/4.md) or [netgraph(4)](/netgraph/4.md). Which one to use is determined by the NETGRAPH\_CRONYX option. If this option is present in your kernel configuration file, the **cp** driver will be compiled with [netgraph(4)](/netgraph/4.md) support. Otherwise, it will be compiled with [sppp(4)](/sppp/4.md) support.

Refer to sconfig(8) for information about the **cp** adapter configuration.

## HARDWARE

The **cp** driver supports the following models of Tau-PCI WAN adapters:

- Cronyx Tau-PCI

  V.35 and RS-232 interfaces

- Cronyx Tau-PCI/R

  RS-530(RS-449) and X.21 interfaces

- Cronyx Tau-PCI-L

  one V.35 and RS-232 interface, low profile

- Cronyx Tau-PCI-L/R

  one RS-530(RS-449) and X.21 interface, low profile

- Cronyx Tau-PCI-E1

  fractional E1 interfaces

- Cronyx Tau-PCI-G703

  unframed E1 interfaces

- Cronyx Tau-PCI-2E1

  fractional E1 and unframed E1 interfaces

- Cronyx Tau-PCI-4E1

  fractional E1 and unframed E1 interfaces

- Cronyx Tau-PCI-E3

  E3 interface

- Cronyx Tau-PCI-T3

  T3 interface

- Cronyx Tau-PCI-STS1

  STS-1 interface

## SEE ALSO

[ctau(4)](/ctau/4.md), [cx(4)](/cx/4.md), [sppp(4)](/sppp/4.md), [ifconfig(8)](/ifconfig/8.md), sconfig(8), spppcontrol(8)

## HISTORY

The **cp** driver was added in FreeBSD 5.3 and FreeBSD 4.11. The **cp** driver for previous versions of FreeBSD is available from *http://www.cronyx.ru/*.