problems loading driver for USB wifi stick
 

I'm using Ubuntu.
I have installed a driver for an Edimax USB wifi stick. The dirver was installed successfully, and loaded. But when I rebooted the system the driver didn't load.
I have copied and pased the results to this message.
Please help me with this problem.

Here is the result of 'lsusb' command for the usb port with the wifi stick:
--------------------------------------------------------
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x148f Ralink Technology, Corp.
idProduct 0x2573
bcdDevice 0.01
iManufacturer 1 Ralink
iProduct 2 802.11 bg WLAN
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 300mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
-------------------------------------------------------

Here is the result of 'dmesg' command after I tried unsuccessffully to reload the driver:
-------------------------------------------------------
[ 41.337891] Loading module: rt2x00lib - CVS (N/A) by http://rt2x00.serialmonkey.com.
[ 41.342427] Loading module: rt73usb - CVS (N/A) by http://rt2x00.serialmonkey.com.
[ 41.407156] ACPI: PCI Interrupt 0000:00:11.6[C] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5
[ 41.407609] PCI: Setting latency timer of device 0000:00:11.6 to 64
[ 41.458343] input: ImPS/2 Generic Wheel Mouse as /class/input/input3
[ 41.501991] sd 1:0:0:0: Attached scsi generic sg0 type 0
[ 41.686118] usbcore: registered new interface driver rt73usb
[ 41.725027] usbcore: registered new interface driver rt2570
[ 41.817069] rtusb init ====>
[ 41.817173] usbcore: registered new interface driver rt73
[ 41.916453] ACPI: PCI Interrupt 0000:00:11.5[C] -> Link [LNKC] -> GSI 5 (level, low) -> IRQ 5
[ 41.916624] PCI: Setting latency timer of device 0000:00:11.5 to 64
[ 42.293881] wmaster0: Selected rate control algorithm 'simple'
[ 42.611066] wlan0: starting scan
[ 42.828602] fuse init (API version 7.8)
[ 42.883583] lp0: using parport0 (interrupt-driven).
[ 42.947491] Adding 746980k swap on /dev/disk/by-uuid/28f278e0-727b-4198-8c67-9951d78cb42f. Priority:-1 extents:1 across:746980k
[ 43.104925] EXT3 FS on hda1, internal journal
[ 43.729021] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3040 with error -71.
[ 43.730258] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3040 with error -71.
[ 43.731506] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.732754] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x308c with error -71.
[ 43.734003] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.735250] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.736499] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.737747] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.738995] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.739100] rt73usb->rt2x00_bbp_read: Error - PHY_CSR3 register busy. Read failed.
[ 43.740244] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x308c with error -71.
[ 43.741492] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x308c with error -71.
[ 43.742739] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.743989] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3090 with error -71.
[ 43.745240] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.746485] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.747733] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.748981] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.750229] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.750333] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.751478] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.752726] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.754038] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.755229] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.756478] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.756594] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.757720] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.758968] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.760215] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.761463] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.762711] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.762815] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.763960] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.765208] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.766457] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.767705] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.768953] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.769058] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.770201] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.771450] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.772698] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.773946] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.775194] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.775298] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.776443] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.777690] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.778939] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.780187] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.781435] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.781539] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.782682] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.783931] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.785178] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.786427] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.787675] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.787779] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.788924] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.790173] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.791421] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.792669] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.793916] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.794021] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.795164] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.796413] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.797661] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.798911] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.800157] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.800262] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.801406] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.802654] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.803903] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.805151] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.806399] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.806503] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.807647] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.808902] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.810147] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.811393] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.812642] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3090 with error -71.
[ 43.812763] rt73usb->rt2x00_rf_write: Error - PHY_CSR4 register busy. Write failed.
[ 43.820880] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3024 with error -71.
[ 43.822126] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3024 with error -71.
[ 43.823375] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3020 with error -71.
[ 43.824623] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3020 with error -71.
[ 43.825871] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3040 with error -71.
[ 43.827118] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3040 with error -71.
[ 43.828368] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3050 with error -71.
[ 43.829615] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3050 with error -71.
[ 43.830865] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3040 with error -71.
[ 43.832112] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3040 with error -71.
[ 43.891691] usb 4-1: USB disconnect, address 2
[ 43.924158] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x0a failed for offset 0x0000 with error -19.
[ 43.924174] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3028 with error -19.
[ 43.924181] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3064 with error -19.
[ 43.924188] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x07 failed for offset 0x3040 with error -19.
[ 43.924195] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x06 failed for offset 0x3040 with error -19.
[ 43.924202] rt73usb->rt2x00_vendor_request: Error - vendor request error. Request 0x0c failed for offset 0x0000 with error -19.
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