Comment 204 for bug 1220146

For ubuntu 14.10 after small changes in code downloaded from mediatek site wifi work.

 /rt2x00/rt2800usb.c

line 766 PREPARE_WORK(&rt2x00dev->txdone_work, rt2800usb_work_txdone);
---> INIT_WORK(&rt2x00dev->txdone_work, rt2800usb_work_txdone);