TXP(4) | Device Drivers Manual | TXP(4)

# NAME

`txp` — 3Com 3XP Typhoon/Sidewinder (3CR990) 10/100 Ethernet device

# SYNOPSIS

`txp* at pci?`

# DESCRIPTION

The `txp` driver provides support for the 3Com Typhoon/Sidewinder Fast Ethernet chipset, including the following:

- 3Com 3CR990-TX-95
- 3Com 3CR990-TX-97
- 3Com 3CR990SVR95
- 3Com 3CR990SVR97

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

The `txp` driver supports the following media types:

`autoselect`
  Enable autoselection of the media type and options. The user can manually override the autoselected mode by adding media options to the appropriate hostname.if(5) file.
`10baseT`
  Set 10Mbps operation. The ifconfig(8) `mediaopt` option can also be used to select either `full-duplex` or `half-duplex` modes.
`100baseTX`
  Set 100Mbps (Fast Ethernet) operation. The ifconfig(8) `mediaopt` option can also be used to select either `full-duplex` or `half-duplex` modes.

The `txp` driver supports the following media options:

`full-duplex`
  Force full duplex operation.
`half-duplex`
  Force half duplex operation.

For more information on configuring this device, see ifconfig(8).

# FILES

The driver needs a firmware file, which is loaded on demand when the device is attached:

/etc/firmware/3c990

# SEE ALSO

arp(4), ifmedia(4), intro(4), netintro(4), pci(4), hostname.if(5), ifconfig(8)

# HISTORY

The `txp` driver first appeared in OpenBSD 2.9.

October 28, 2008 | Debian