---
name: "adm6996fc"
section: "4"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/adm6996fc"
---

# adm6996fc(4)

driver for Infineon ADM6996FC fast ethernet switch chip

## NAME

**adm6996fc** – driver for Infineon ADM6996FC fast ethernet switch chip

## SYNOPSIS

**device mdio** **device etherswitch** **device adm6996fc**

**hint.adm6996fc.0.at="mdio0"**

## DESCRIPTION

The **adm6996fc** device driver provides a management interface to Infineon ADM6996FC fast ethernet switch chip. This driver use smi interface by ethernet interface.

This driver support is port and dot1q vlan. dot1q support port base tag/untag.

## EXAMPLES

Configure dot1q vlan by etherswitchcfg command.

```
# etherswitchcfg config vlan_mode dot1q
```

Configure port 5 is tagging port.

```
# etherswitchcfg port5 addtag
```

## SEE ALSO

[etherswitch(4)](/etherswitch/4.md), [etherswitchcfg(8)](/etherswitchcfg/8.md)

## HISTORY

The **adm6996fc** device driver first appeared in FreeBSD 12.0.

## AUTHORS

The **adm6996fc** driver was written by Hiroki Mori