New driver for Ralink wireless dongle 148f:761a

I've installed a Ralink Technologies WiFi dongle in my Slackware 14.2/64 system, but apparently it is not recognized. lsusb gives:
Code: idVendor 0x148f Ralink Technology, Corp.
idProduct 0x761a
bcdDevice 1.00
iManufacturer 1 MediaTek
iProduct 2 WiFi
bcdDevice 1.00
iManufacturer 1 MediaTek
iProduct 2 WiFi
iSerial 3 1.0I have not located any useful information on locating a driver for this for Slackware.

Any suggestions?