Title: no driver for USB device

Dear all,

I have a 3Com USB bluetooth adapter... I am trying to make it works on a RedHat 7.2 box.
When i tried to plug the adapter into the linux box. >From the file "/var/log/messages", it shows that there is no driver for the USB product. please read the content of the file below.

please read the files (/proc/bus/usb/drivers and /proc/bus/usb/devices) below. As i know, the driver for the adapter should be hci_usb but not bluetooth. how can i change it? how can i assign the driver (hci_usb) to the adapter?

please help.... many thanks
Lui

===== /var/log/messsages =====
Apr  8 01:51:54 hostname kernel: usb.c: USB disconnect on device 2
Apr  8 01:51:54 hostname kernel: bluetooth.c: Bluetooth converter now disconnected from ttyUB0
Apr  8 01:51:57 hostname kernel: hub.c: USB new device connect on bus1/2, assigned device number 3
Apr  8 01:51:57 hostname kernel: bluetooth.c: USB Bluetooth converter detected
Apr  8 01:51:57 hostname kernel: bluetooth.c: Bluetooth converter now attached to ttyUB0 (or usb/ttub/0 for devfs)
Apr  8 01:51:57 hostname kernel: usb_control/bulk_msg: timeout
Apr  8 01:51:58 hostname last message repeated 2 times
Apr  8 01:51:58 hostname kernel: usb-uhci.c: interrupt, status 2, frame# 1295
Apr  8 01:51:58 hostname /etc/hotplug/usb.agent: ... no drivers for USB product 506/a0/115
============ end ================
===== /proc/bus/usb/drivers =====
         usbdevfs
         hub
         bluetooth
         hci_usb
============ end ================
===== /proc/bus/usb/devices =====
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI Root Hub
S:  SerialNumber=dca0
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  3 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0506 ProdID=00a0 Rev= 1.15
C:* #Ifs= 3 Cfg#= 1 Atr=80 MxPwr=120mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=bluetooth
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=  1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=  1ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=  1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=  1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=  1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=  1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=  1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=  1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=  1ms
I:  If#= 2 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)
============ end ================

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