build và cài đặt Driver Tenda W541U

[haian]

mình muốn cài driver của usb wifi tenda vào ubuntu 11.04, đã build nó thành công

đây là src của nó: http://download514.mediafire.com/89r....5.0.2_DPO.bz2

nhưng khi làm theo hứong dẫn tại đây: http://ubuntuforums.org/showthread.php?t=1799888

cd directorycontainingmakefile
sudo su
make
make install
modprobe rt5370sta
exit

thì bị lỗi

unknown symbol in module

[411413.019890] sd 16:0:0:0: [sdc] Write Protect is off
[411413.019897] sd 16:0:0:0: [sdc] Mode Sense: 00 00 00 00
[411413.020528] sd 16:0:0:0: [sdc] Asking for cache data failed
[411413.020537] sd 16:0:0:0: [sdc] Assuming drive cache: write through
[411413.021849] sd 16:0:0:0: Attached scsi generic sg3 type 0
[411413.024889] sd 16:0:0:0: [sdc] Asking for cache data failed
[411413.024898] sd 16:0:0:0: [sdc] Assuming drive cache: write through
[411413.077706] sdc: sdc1
[411413.082643] sd 16:0:0:0: [sdc] Asking for cache data failed
[411413.082652] sd 16:0:0:0: [sdc] Assuming drive cache: write through
[411413.082659] sd 16:0:0:0: [sdc] Attached SCSI removable disk
[411860.051863] rt5370sta: module license 'unspecified' taints kernel.
[411860.051871] Disabling lock debugging due to kernel taint
[411860.054385] rt5370sta: Unknown symbol usb_alloc_urb (err 0)
[411860.054699] rt5370sta: Unknown symbol usb_free_urb (err 0)
[411860.055520] rt5370sta: Unknown symbol usb_alloc_coherent (err 0)
[411860.056223] rt5370sta: Unknown symbol usb_register_driver (err 0)
[411860.056748] rt5370sta: Unknown symbol usb_put_dev (err 0)
[411860.056902] rt5370sta: Unknown symbol usb_get_dev (err 0)
[411860.057160] rt5370sta: Unknown symbol usb_submit_urb (err 0)
[411860.057539] rt5370sta: Unknown symbol usb_free_coherent (err 0)
[411860.057930] rt5370sta: Unknown symbol usb_control_msg (err 0)
[411860.058387] rt5370sta: Unknown symbol usb_deregister (err 0)
[411860.058992] rt5370sta: Unknown symbol usb_kill_urb (err 0)
[412050.814281] rt5370sta: Unknown symbol usb_alloc_urb (err 0)
[412050.814593] rt5370sta: Unknown symbol usb_free_urb (err 0)
[412050.815096] rt5370sta: Unknown symbol usb_alloc_coherent (err 0)
[412050.815764] rt5370sta: Unknown symbol usb_register_driver (err 0)
[412050.816993] rt5370sta: Unknown symbol usb_put_dev (err 0)
[412050.817266] rt5370sta: Unknown symbol usb_get_dev (err 0)
[412050.817730] rt5370sta: Unknown symbol usb_submit_urb (err 0)
[412050.818216] rt5370sta: Unknown symbol usb_free_coherent (err 0)
[412050.818615] rt5370sta: Unknown symbol usb_control_msg (err 0)
[412050.819074] rt5370sta: Unknown symbol usb_deregister (err 0)
[412050.819680] rt5370sta: Unknown symbol usb_kill_urb (err 0)