Gemtek WMIB-275N (Lenovo)

multiple revisions of this device, use caution

abgn (N300)
ThinkPad 2x2 a/b/g/n Wireless LAN PCI Express Half Mini Card Adapter
Platform
Brand • Model • Rev	Gemtek WMIB-275N (Lenovo)
Interface	Mini PCIe
Connector	Mini PCIe
Form factor	(half)
ID:14e4:0576 Windows: PCI\VEN_14E4&DEV_0576
FCCID	QDS-BRCM1041
Chip1	Broadcom BCM43224
OUI: AC:81:12 (-, 3 W)
Antenna Connection	U.FL
MIMO status	2x2:2
Wireless Standards	IEEE 802.11a/b/g/n
802.11n	up to 300/300 Mbps
802.11g	up to 54 Mbps
802.11b	up to 11 Mbps
Operating Frequency	2.4 GHz
Other
Manuf/OEM/ODM	Gemtek
Probable Linux driver brcmsmac (in backports), b43 (3.1+), or wl PCI ID first seen in kernel v3.2 (2012-01-04) (see also passys)
Retail
FCC approval date	02 April 2009
FCC ID Broadcom BCM943224HMB QDS-BRCM1041 Broadcom BCM943224HMS QDS-BRCM1041 Dell Wireless 1520 (DW1520) QDS-BRCM1041 Gemtek WMIB-275N (HP) QDS-BRCM1041 Pegatron UPWL6024 VUIUPWL6024 QDS-BRCM1041
Chip1 brand Chip2 brand Gemtek WMIB-275N (HP) Broadcom Gemtek WMIB-275N (Lenovo) Broadcom

For a list of all currently documented Broadcom chipsets with specifications, see Broadcom.

For a list of all currently documented Gemtek device with specifications, see Gemtek.

• 300 Mbps - 2SS 2.4GHz 802.11n (40MHz chan.) = N300 class

Overview

This is Lenovo FRU 60Y3251.

This device is used in the following laptops..

• Thinkpad X120e
  • OUI AC:81:12
• Thinkpad X130e (per the service manual for the device)

The 14e4:0576 PCI ID appears to be vendor specific.

lspci -nnv dump

05:00.0 Network controller [0280]: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:0576] (rev 01)
        Subsystem: Broadcom Corporation BCM43224 802.11a/b/g/n [14e4:0576]
        Physical Slot: 1
        Flags: bus master, fast devsel, latency 0, IRQ 19
        Memory at f1d00000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [58] Vendor Specific Information: Len=78 <?>
        Capabilities: [48] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [d0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [13c] Virtual Channel
        Capabilities: [160] Device Serial Number 00-00-12-ff-ff-3e-ac-81
        Capabilities: [16c] Power Budgeting <?>
        Kernel driver in use: bcma-pci-bridge

bcma + b43 info dump

[53716.056951] bcma: bus1: Found chip with id 0xA8D8, rev 0x01 and package 0x0A
[53716.056982] bcma: bus1: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x22, class 0x0)
[53716.057007] bcma: bus1: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x17, class 0x0)
[53716.057058] bcma: bus1: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x0F, class 0x0)
[53716.068897] b43-phy42: Broadcom 43224 WLAN found (core revision 23)
[53716.069297] b43-phy42: Found PHY: Analog 8, Type 4 (N), Revision 6
[53716.069776] bcma: bus1: Bus registered
[53716.069928] ieee80211 phy42: Selected rate control algorithm 'minstrel_ht'
[53716.252766] b43-phy42: Loading firmware version 666.2 (2011-02-23 01:15:07)
[53716.346091] IPv6: ADDRCONF(NETDEV_UP): wlan111: link is not ready