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

# my(4)

Myson Technology Ethernet PCI driver

Part of [if\_my(4)](/if_my/4.md).

## NAME

**my** – Myson Technology Ethernet PCI driver

## SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:

**device my**

Alternatively, to load the driver as a module at boot time, place the following line in [loader.conf(5)](/loader.conf/5.md):

```
if_my_load="YES"
```

## DESCRIPTION

The **my** driver provides support for various NICs based on the Myson chipset. The Myson chipset is a variant of the DEC Tulip NIC chipset.

The driver will work with almost any MII-compliant PHY, thus failure to positively identify the chip is not a fatal error.

## HARDWARE

The **my** driver provides support for various NICs based on the Myson chipset. Supported models include:

- Myson MTD800 PCI Fast Ethernet chip

- Myson MTD803 PCI Fast Ethernet chip

- Myson MTD89X PCI Gigabit Ethernet chip

## SEE ALSO

[altq(4)](/altq/4.md), [netintro(4)](/netintro/4.md), [pci(4)](/pci/4.md), [ifconfig(8)](/ifconfig/8.md)

## HISTORY

The **my** driver first appeared in FreeBSD 4.6.

## AUTHORS

The **my** driver was written by Myson Technology Inc.

This manual page was written by Hiten M. Pandya ⟨*hmp@FreeBSD.org*⟩.

## BUGS

The **my** driver does not support Power Management Events (PME).