This is the oficial driver of Realtek 8187L chipset, with some modifications and upgrades to work fine in > 3.80 Linux kernel.
Tested on Ubuntu 13.04 (Linux kernel 3.8.0-31) with usb card ALFA Networks AWUS036H, used for daily use (navigation, downloads...) and test security of wireless networks with some utils (e.g aircrack-ng)
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Download the updated driver from GitHub:
wget https://github.com/Dekadencee/rtl8187-Linux-Driver/archive/master.zip
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Unzip file and remove zip:
unzip master.zip rm master.zip
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Compile driver:
cd master sudo make sudo make install
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Backlist the native drivers to aboid conflict:
echo "blacklist rtl8187" | sudo tee -a /etc/modprobe.d/blacklist.conf
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Reboot or reload drivers manually removing the native one:
sudo modprobe -rfv rtl8187 sudo modprobe -v r8187l
Special thanks to varunendra (http://ubuntuforums.org/member.php?u=1043629) for the guides and tips on Ubuntu forums