Setting RTL8188CUS to Monitor Mode

[billli]

I have a Wifi USB Dongle that I would like to set to monitor mode.

I was able to set it to monitor mode in Ubuntu 14.04 (On my desktop machine) However I am having trouble with it on my Raspberry pi.

lsusb:

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    Bus 001 Device 004: ID 0bda:8176 Realtek Semiconductor Corp. RTL8188CUS 802.11n WLAN Adapter

I tried:

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    sudo ifconfig wlan0 down
    sudo iwconfig wlan0 mode Monitor
    sudo ifconfig wlan0 up

But I am seeing:

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    root@raspberrypi:~# sudo iwconfig wlan0 mode Monitor
    Error for wireless request "Set Mode" (8B06) :
        SET failed on device wlan0 ; Invalid argument.

Any idea what is going on? I installed the latest version of the NOOB pi OS, downloaded from the Raspberry pi's download page.

[fruitoftheloom]

http://www.raspberrypi.org/forums/viewt ... 71&t=24951