Dynex DX-NNBC

Overview
OEM Gemtek WPCB-184GN (WPCB-184GN_V02C1)
 * "ENG-X10-1402R RoHS" is silkscreened on the board.

lspci -nnv dump
06:00.0 Network controller [0280]: Broadcom Corporation BCM4322 802.11b/g/n [14e4:432c] (rev 01) Subsystem: Belkin Dynex DX-NNBX 802.11n WLAN Cardbus Card [1799:d311] Flags: bus master, fast devsel, latency 64, IRQ 19 Memory at f1d00000 (32-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 2 Kernel driver in use: b43-pci-bridge

ssb + b43 info dump
[ 2496.354828] ssb: Found chip with id 0x4322, rev 0x01 and package 0x09 [ 2496.354841] ssb: Core 0 found: ChipCommon (cc 0x800, rev 0x17, vendor 0x4243) [ 2496.354852] ssb: Core 1 found: IEEE 802.11 (cc 0x812, rev 0x10, vendor 0x4243) [ 2496.354863] ssb: Core 2 found: PCI-E (cc 0x820, rev 0x0B, vendor 0x4243) [ 2496.354873] ssb: Core 3 found: PCI (cc 0x804, rev 0x0E, vendor 0x4243) [ 2496.354884] ssb: Core 4 found: USB 2.0 Device (cc 0x81A, rev 0x05, vendor 0x4243) [ 2496.354894] ssb: Core 5 found: ARM Cortex M3 (cc 0x82A, rev 0x00, vendor 0x4243) [ 2496.354905] ssb: Core 6 found: Internal Memory (cc 0x80E, rev 0x03, vendor 0x4243) [ 2496.410846] ssb: Sonics Silicon Backplane found on PCI device 0000:06:00.0 [ 2496.425897] b43-phy1: Broadcom 4322 WLAN found (core revision 16) [ 2496.466709] b43-phy1: Found PHY: Analog 8, Type 4 (N), Revision 4 [ 2496.490778] Broadcom 43xx driver loaded [ Features: PNL ] [ 2496.492570] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht' [ 2496.730520] b43-phy1: Loading firmware version 666.2 (2011-02-23 01:15:07) [ 2496.963703] b43-phy1 ERROR: Fatal DMA error: 0x00000400, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000 [ 2496.963709] b43-phy1 ERROR: This device does not support DMA on your system. It will now be switched to PIO. [ 2496.963711] b43-phy1: Controller RESET (DMA error) ... [ 2497.198330] b43-phy1: Loading firmware version 666.2 (2011-02-23 01:15:07) [ 2497.410224] b43-phy1 warning: Forced PIO by use_pio module parameter. This should not be needed and will result in lower performance. [ 2497.431176] b43-phy1: Controller restarted [ 2497.431391] IPv6: ADDRCONF(NETDEV_UP): wlan172: link is not ready

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