Ralink

Ralink Technology, Corp. is a Wi-Fi chipset manufacturer mainly known for their IEEE 802.11 (Wireless LAN) chipsets. Ralink was founded in 2001 in Cupertino, California, then moved its headquarters to Hsinchu, Taiwan. On 5 May 2011, Ralink was acquired by MediaTek.

Ralink Technology, Corp.
TypeSubsidiary
IndustrySemiconductor
FoundedJanuary 2001, Cupertino, CA
HeadquartersHsinchu, Taiwan
ProductsWi-Fi chipset
ParentMediaTek
Websitenone

Some of Ralink's 802.11n RT2800 chipsets have been accepted into the Wi-Fi Alliance 802.11n draft 2.0 core technology testbed. They have also been selected in the Wi-Fi Protected Setup (WPS) and Wireless Multimedia Extensions Power Save (WMM-PS) testbeds. Ralink was a participant in the Wi-Fi Alliance and the IEEE 802.11 standards committees.[1]

Ralink RT2560F on a WiFi Mini PCI Card

Ralink chipsets are used in various consumer-grade routers made by Gigabyte Technology, Linksys, D-Link, Asus and Belkin, as well as Wi-Fi adaptors for USB, PCI, ExpressCard, PC Card, and PCI Express interfaces. An example of an adapter is the Nintendo Wi-Fi USB Connector which uses the Ralink RT2570 chipset to allow a Nintendo DS or Wii to be internetworked via a home computer.

Operating systems support

Ralink provides some documentation without a non-disclosure agreement.[2] This includes datasheets of their PCI and PCIe chipsets, but for now does not include documentation of their system on a chip used in Wireless routers.

Linux

Drivers for MediaTek Ralink wireless network interface controllers were mainlined into the Linux kernel version 2.6.24. (See Comparison of open-source wireless drivers.) Ralink provides GNU General Public License-licensed (GPL) drivers for the Linux kernel. While Linux drivers for the older RT2500 chipsets are no longer updated by Ralink, these are now being maintained by Serialmonkey's rt2x00 project. Current Ralink chipsets require a firmware to be loaded. Ralink allows the use and redistribution of firmware, but does not allow its modification.

In February 2011 Greg Kroah-Hartman praised Ralink for their change in attitude towards the Linux kernel developer community:

As you can see in these posts, Ralink is sending patches for the upstream rt2x00 driver for their new chipsets, and not just dumping a huge, stand-alone tarball driver on the community, as they have done in the past. This shows a huge willingness to learn how to deal with the kernel community, and they should be strongly encouraged and praised for this major change in attitude.

— Greg Kroah-Hartman on 2011-02-09, here

See also

References
  1. Wi-Fi Alliance Announces First Wi-Fi Certified 802.11n Draft Products Archived 2007-09-27 at the Wayback Machine
  2. Biancuzzi, Federico. "OpenBSD 3.9: Blob-Busters Interviewed - O'Reilly Media". Retrieved 25 June 2016.
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