I have Mitsumi USB mini-mouse (gray colored with Fujitsu-Siemens logo) for a laptop. 
When I plug it into my laptop, it's recognized ok but an error message "ctrl usb 
status -75 received" is printed and the mouse cannot be used. Only once it 
inaccidentally worked under X, but only until a next reboot. The same error (-75) 
occurs when plugged into another Linux 2.6.3 machine. Mouse should not be physically 
broken, though, since it worked ok under pre-installed Win98 when I bought this laptop.

Some info about my system:

lupus:~# cat /proc/bus/usb/devices

T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc= 87/900 us (10%), #Int=  1, #Iso=  0
D:  Ver= 1.10 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.06
S:  Manufacturer=Linux 2.6.3 uhci_hcd
S:  Product=UHCI Host Controller
S:  SerialNumber=0000:00:01.2
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=   2 Ivl=255ms

T:  Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#=  2 Spd=1.5 MxCh= 0
D:  Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=03ee ProdID=6407 Rev= 1.10
S:  Manufacturer=Mitsumi
S:  Product=HID-compliant Mouse (USB)
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=hid
E:  Ad=81(I) Atr=03(Int.) MxPS=   3 Ivl=16ms

********************

dmesg:
drivers/usb/host/uhci-hcd.c: USB Universal Host Controller Interface driver v2.1
PCI: Found IRQ 9 for device 0000:00:01.2
uhci_hcd 0000:00:01.2: UHCI Host Controller
uhci_hcd 0000:00:01.2: irq 9, io base 0000f4e0
uhci_hcd 0000:00:01.2: new USB bus registered, assigned bus number 1
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
usb 1-2: new low speed USB device using address 2
drivers/usb/input/hid-core.c: ctrl urb status -75 received
input: USB HID v1.00 Mouse [Mitsumi HID-compliant Mouse (USB)] on usb-0000:00:01.2-2
drivers/usb/core/usb.c: registered new driver hid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver

********************

XF86Config:
Section "InputDevice"
        Identifier      "USB Mouse"
        Driver          "mouse"
        Option          "SendCoreEvents"        "true"
        Option          "Device"                "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        #Option         "Emulate3Buttons"
        Option          "ZAxisMapping"          "4 5"
EndSection
Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "USB Mouse"
        InputDevice     "Fujitsu Touch Panel" "CorePointer"
EndSection

********************

lupus:~# uname -a
Linux lupus 2.6.3 #4 Thu Mar 11 20:59:08 EET 2004 i586 GNU/Linux

********************

The machine is Fujitsu Lifebook B112 laptop.

-- 
Jaakko Holster
/* Student of Information Engineering, University of Oulu
   Paalikatu 14 B 201, FIN-90520 Oulu
   holster at iki fi +358 41 436 0880 */


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