Sitecom WLA-2102 (N300 WiFi, USB)

Réseau 802.11n, Sitecom, USB, WiFi

Sitecom WLA-2102 (N300 WiFi, USB)
Examen de compatibilité avec Linux:
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Sitecom WLA-2102 
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Minimum: EUR 29,00 
Maximum: EUR 48,19  
Mis à jour: 16/02/2016 11:59

Examen de compatibilité avec Linux

The Sitecom WLA-2102 is a USB WiFi stick with USB ID 0df6:0070

Bus 001 Device 003: ID 0df6:0070 Sitecom Europe B.V.

The stick bases on the Realtek RTL8192CU chipset and is recognized by the Linux kernel, if plugged in, in the with the following log message:

usb 1-1.3.4.3: new high-speed USB device number 6 using dwc_otg
usb 1-1.3.4.3: New USB device found, idVendor=0df6, idProduct=0070
usb 1-1.3.4.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1.3.4.3: Product: 802.11n WLAN Adapter
usb 1-1.3.4.3: Manufacturer: Realtek
usb 1-1.3.4.3: SerialNumber: 001122334455

The stick can be used under Linux with the kernel module rtl1892cu. However, this module does not know the USB ID of the stick and hence does not feel responsible for the USB ID 0df6:0070. This has be corrected with the following command:

echo 'install 8192cu modprobe --ignore-install 8192cu; /bin/echo "0df6 0070" > /sys/bus/usb/drivers/rtl8192cu/new-id' | sudo tee /etc/modprobe.d/8192cu.conf

before the driver can be loaded by:

sudo modprobe -v rtl8192cu

Afterwards, the Linux driver loads automatically:

rtl8192cu: MAC address: 00:11:22:33:44:55
rtl8192cu: Board Type 0
usbcore: registered new interface driver rtl8192cu
rtl8192cu: MAC auto ON okay!
rtl8192cu: Tx queue select: 0x05
rtl8192c_common: Loading firmware file rtlwifi/rtl8192cufw.bin

An automatic loading of the kernel module at system start-up can be achieved by adding the following rule to the file « /etc/udev/rules.d/10-wlan_stick.rules »:

SUBSYSTEM=="usb", ATTR{idVendor}=="0df6", ATTR{idProduct}=="0070", RUN+="/sbin/modprobe rtl8192cu"

Realtek Driver:

Alternatively, one can use the Linux driver 8192cu (without the addition « rtl » in its name), which is provided by Realtek, and can be downloaded from the Realtek homepage. This driver has to be compiled by hand, which (under Ubuntu) needs the installation of the so-called « build-essentials »

sudo apt-get install build-essential

Afterwards, the installation script, which is inside the downloaded and unpacked file, can be executed:

sudo ./install.sh

In order to successfully load the 8192cu driver the rtl8192cu driver shall not be loaded. Otherwise, the loading of the driver will fail. Therefore, the loading of the rtl8192cu needs to be prevented by adding it to the blacklist:

echo "blacklist rtl8192cu" | sudo tee -a /etc/modprobe.d/blacklist.conf

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