I'm trying to install Rt2570 v1.1.0-b2 driver on BackTrack 3. After running the "make" command, the package starts to build. After the messages scroll for awhile, it abruptly ends with this error message.

LD [M] sound/soundcore.ko
CC sound/synth/emux/snd-emux-synth.mod.o
LD [M] sound/synth/emux/snd-emux-synth.ko
CC sound/synth/snd-util-mem.mod.o
LD [M] sound/synth/snd-util-mem.ko
CC sound/usb/snd-usb-audio.mod.o
LD [M] sound/usb/snd-usb-audio.ko
CC sound/usb/snd-usb-lib.mod.o
LD [M] sound/usb/snd-usb-lib.ko
CC sound/usb/usx2y/snd-usb-usx2y.mod.o
LD [M] sound/usb/usx2y/snd-usb-usx2y.ko
make[1]: Leaving directory `/usr/src/linux-2.6.21.5'
rt2570.ko failed to build!
make: *** [module] Error 1

I tried with building the driver using Rt2570 v1.1.0-b1 package and get the same result. Anyone knows what "Error 1" is?