RTL8188SU usb wifi device does not work

[Tom Ellis]

Traceback appears when inserting this USB wifi device.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-24-generic 2.6.35-24.42
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-24.42-generic 2.6.35.8
Uname: Linux 2.6.35-24-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: trellis 1919 F.... pulseaudio
 /dev/snd/pcmC0D0p: trellis 1919 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 47'
   Mixer name : 'Conexant CX20561 (Hermosa)'
   Components : 'HDA:14f15051,17aa20ff,00100000'
   Controls : 14
   Simple ctrls : 7
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7XHT24WW-1.06'
   Mixer name : 'ThinkPad EC 7XHT24WW-1.06'
   Components : ''
   Controls : 1
   Simple ctrls : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sat Jan 15 15:55:20 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release Candidate amd64 (20100928.1)
MachineType: LENOVO 7454CTO
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-24-generic root=UUID=e62694aa-d191-41af-9437-79b80336a64d ro quiet splash nodmraid usbcore.autosuspend=1 elevator=noop apparmor=0
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.38
SourcePackage: linux
StagingDrivers: r8192s_usb
Title: [STAGING]
dmi.bios.date: 12/02/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6DET67WW (3.17 )
dmi.board.name: 7454CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6DET67WW(3.17):bd12/02/2010:svnLENOVO:pn7454CTO:pvrThinkPadX200:rvnLENOVO:rn7454CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7454CTO
dmi.product.version: ThinkPad X200
dmi.sys.vendor: LENOVO

[Tom Ellis (tellis)]

us 001 Device 017: ID 0bda:8171 Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter
Device Descriptor:
  idVendor 0x0bda Realtek Semiconductor Corp.
  idProduct 0x8171 RTL8188SU 802.11n WLAN Adapter

[Tom Ellis (tellis)]

Tried an early daily build from:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.37-natty/

trellis@viper:~$ uname -a
Linux viper 2.6.37-020637-generic #201101050908 SMP Wed Jan 5 09:09:44 UTC 2011 x86_64 GNU/Linux

This seems to fix the problem and the wifi is working great.

[ 35.650040] wlan0: no IPv6 routers present
[ 37.960136] usb 1-1: new high speed USB device using ehci_hcd and address 5
[ 38.120441] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[ 38.123594] r8712u: DriverVersion: v7_0.20100831
[ 38.123612] r8712u: register rtl8712_netdev_ops to netdev_ops
[ 38.123615] r8712u: USB_SPEED_HIGH with 4 endpoints
[ 38.124229] r8712u: Boot from EFUSE: Autoload OK
[ 38.685813] r8712u: CustomerID = 0x0000
[ 38.685817] r8712u: MAC Address from efuse = 00:1b:eb:40:3f:2b
[ 38.686596] usbcore: registered new interface driver r8712u
[ 39.460563] r8712u: 1 RCR=0x153f00e
[ 39.461310] r8712u: 2 RCR=0x553f00e
[ 39.571029] ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 50.005687] ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 60.770036] wlan1: no IPv6 routers present

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.