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Edimax EW-7811Un
Edimax EW-7811Un
- Chipset: RTL8188CUS
- Device ID: 7392:7811
- Driver: http://www.edimax.com/images/Image/Driver_Utility/Wireless/NIC/EW-7811Un/20101210_v1.08_windows.zip
Info
This device is reported to work on i386 (see report below) but no successful report on x86_64.
This is Ubuntu 10.10 on an AMD x86_64.
Plugged the device in, and saw it appear in lsusb, and a message appears in /var/log/messages
new high speed USB device using ehci_hcd and addresss 11
But iwconfig shows no wlan0.
Downloaded the Linux drivers from Edimax (the Realtek drivers). They build, but with lots of warnings relating to 64 vs 32 bit stuff. The module loads, but does not work. Lots of errors appear in /var/log/messages, mostly "usb read/wrote TimeOut!" Wrote to Realtek support asking them to fix this, haven't heard back.
Similar story, no apparent solution: http://ubuntuforums.org/showthread.php?t=1658112
So unloaded the 8192cu module, blacklisted it in in /etc/modprobe.d/blacklist.conf Then installed ndiswrapper, and got the Windows drivers from the Edimax site. There are 32 and 64 bit versions for Win7 Vista and XP. Tried XP 64 first, then the other 64 bit ones, then the 32 bit ones. They load
$ ndiswrapper -l net8192cu: device (7392:7811) present (alternate driver: 8192cu)
but iwconfig shows no wlan0
It is possible to use WinXP 32bit drivers from Edimax site -- but only g mode is available (tested on Fedora 15 i386). Native driver rtl8192cu also loads, but card doesn't see my access points (tested on D-Link DWL-2100, TP-Link TL-WR1043ND with WPA2-PSK CCMP/CCMP).
$ cd 88_92_CU_Driver/WinXP
$ sudo ndiswrapper -i `readlink -f net8192cu.inf`
$ ndiswrapper -v
utils version: '1.9', utils version needed by module: '1.9'
module details:
filename: /lib/modules/2.6.40-4.fc15.i686.PAE/extra/ndiswrapper/ndiswrapper.ko
version: 1.56
vermagic: 2.6.40-4.fc15.i686.PAE SMP mod_unload 686
$ lsusb -v
Bus 002 Device 011: ID 7392:7811 Edimax Technology Co., Ltd
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x7392 Edimax Technology Co., Ltd
idProduct 0x7811
bcdDevice 2.00
iManufacturer 1 Realtek
iProduct 2 802.11n WLAN Adapter
iSerial 3 00e04c000001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 46
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 4
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
$ dmesg
[ 3252.448211] usb 2-4: new high speed USB device number 11 using ehci_hcd
[ 3252.564061] usb 2-4: New USB device found, idVendor=7392, idProduct=7811
[ 3252.564071] usb 2-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3252.564079] usb 2-4: Product: 802.11n WLAN Adapter
[ 3252.564085] usb 2-4: Manufacturer: Realtek
[ 3252.564090] usb 2-4: SerialNumber: 00e04c000001
[ 3252.670078] usb 2-4: reset high speed USB device number 11 using ehci_hcd
[ 3252.791289] ndiswrapper (import:233): unknown symbol: ntoskrnl.exe:'_aulldvrm'
[ 3252.791817] ndiswrapper: driver net8192cu (Realtek Semiconductor Corp.,08/06/2010,1008.0.0806.2010) loaded
[ 3253.743432] wlan1: ethernet device 80:1f:02:11:fe:48 using NDIS driver: net8192cu, version: 0x1, NDIS version: 0x500, vendor: 'Realtek RTL8192C Wireless LAN USB NIC',7392:7811.F.conf
[ 3253.743489] wlan1: encryption modes supported: WEP; TKIP with WPA, WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK
[ 3254.029193] ndiswrapper: changing interface name from 'wlan1' to 'wlan4'
$ wpa_supplicant -v
wpa_supplicant v0.7.3
Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi> and contributors
$ wpa_supplicant -Dwext -iwlan4 -c /etc/wpa_supplicant/wpa_supplicant.conf
Trying to associate with XX:XX:XX:XX:XX:XX (SSID='Y' freq=2472 MHz)
Associated with XX:XX:XX:XX:XX:XX
WPA: Key negotiation completed with XX:XX:XX:XX:XX:XX [PTK=CCMP GTK=CCMP]
CTRL-EVENT-CONNECTED - Connection to XX:XX:XX:XX:XX:XX completed (auth) [id=0 id_str=]
WPA: Key negotiation completed with XX:XX:XX:XX:XX:XX [PTK=CCMP GTK=CCMP]
Associated with XX:XX:XX:XX:XX:XX
$ iwconfig wlan4
wlan4 IEEE 802.11g ESSID:"Y"
Mode:Managed Frequency:2.472 GHz Access Point: XX:XX:XX:XX:XX:XX
Bit Rate=48 Mb/s Tx-Power:20 dBm Sensitivity=0/3
RTS thr:off Fragment thr:off
Power Management:off
Link Quality:57/100 Signal level:-59 dBm Noise level:-96 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
