jme(4)

jme4

Jmicron jmc25x/jmc26x 10/100/1gb ethernet device

Usage

jme* at pci? jmphy* at mii?

Overview

The jme driver supports PCI Express Ethernet adapters based on the JMicron JMC260 10/100 and JMC250 10/100/1Gb Ethernet chips. The Ethernet portion of the JMC261 10/100 and JMC251 10/100/1Gb chips, which incorporate a card reader, is also supported.

The jme driver supports IPv4 receive/transmit IP/TCP/UDP checksum offload, IPv6 receive/transmit TCP/UDP checksum offload and VLAN tag insertion and stripping.

The following media types are supported:

autoselect

Enable autoselection of the media type and options.

10baseT

Set 10Mbps operation.

100baseTX

Set 100Mbps (Fast Ethernet) operation.

1000baseT

Set 1000Mbps (Gigabit Ethernet) operation (some models only).

Releases

37 releases since OpenBSD 4.5; the text changed 5 times.

  1. 4.5
  2. 4.6–5.1
  3. 5.2–5.3
  4. 5.4
  5. 5.5–6.9
  6. 7.0–8.0

History

The jme device driver first appeared in OpenBSD 4.5.

Authors

The jme driver was written by Pyun YongHyeon for FreeBSD and ported to OpenBSD by Jonathan Gray ⟨[email protected]⟩.

From man 8.0-current-20261101 in OpenBSD 8.0-current (2026-11-01). Parsed by carta from the page's mdoc source.