I've tried to connect my RPi on anyone internet hotspot, but haven't ethernet connection and it block me to install or update any application on my RPi.
Today i found it :
http://m.dealextreme.com/p/usb-2-0-to-rj45-100-1000mbps-ethernet-lan-network-adapter-white-160153
Can it fix my problems?
modprobe usbnet
does show the module mentioned exists on my pi. – goldilocks♦ Jul 18 '13 at 13:09