Description of problem:

I've previously raised a report about USB errors on booting...
https://bugzilla.redhat.com/show_bug.cgi?id=250545

This case reports similar problems but as applied to a USB device hot-plugged in
after the system is already booted.

My USB mouse looks like this when it has properly configured (from
/proc/bus/usb/devices):

T:  Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  8 Spd=1.5 MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=1267 ProdID=0210 Rev= 0.01
S:  Product=PS/2+USB Mouse
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=100mA
I:* If#= 1 Alt= 0 #EPs= 1 Cls=03(HID  ) Sub=01 Prot=02 Driver=usbhid
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=10ms

Notice that the first interface number is 1, which isn't strictly compliant with
the USB spec, but is compatible with the loosening up of the interpretation made
by a certain popular operating system vendor, see
http://www.microsoft.com/whdc/system/bus/USB/USBFAQ_intermed.mspx where it says:

Windows XP Service Pack 2 (SP2) relaxed the requirement that interface numbers
be consecutive by making changes to the driver Usbccgp.sys. Beginning with SP2,
interface numbers need only be increasing.

So I guess now we're likely to see a new army of USB devices that are compatible
with windows but not strictly with the USB spec.  Groan.  Anyway, linux usually
seems to understand the device, but does give a warning.

Version-Release number of selected component (if applicable):

kernel 2.6.22.4-65.fc7

How reproducible:

Intermittent

Steps to Reproduce:
1.  Plug in USB mouse
2.  Observe behaviour....if it works then problem is not reproducable this time,
but if it doesn't work continue with subsequent steps
3.  Unplug mouse and retry again and again...consistent behaviour each time
4.  Plug in USB pen...works
5.  Plug in USB mouse...now works
  
Actual results:

USB device sometimes doesn't work

Expected results:

Works every time

Additional info:

When the USB mouse fails to be recognised, dmesg reports this:

usb 2-1: new low speed USB device using uhci_hcd and address 4
usb 2-1: device descriptor read/64, error -71
usb 2-1: device descriptor read/64, error -71
usb 2-1: new low speed USB device using uhci_hcd and address 5
usb 2-1: device descriptor read/64, error -71
usb 2-1: device descriptor read/64, error -71
usb 2-1: new low speed USB device using uhci_hcd and address 6
usb 2-1: device not accepting address 6, error -71
usb 2-1: new low speed USB device using uhci_hcd and address 7
usb 2-1: device not accepting address 7, error -71

When it does work, dmesg reports this:

usb 2-1: new low speed USB device using uhci_hcd and address 8
usb 2-1: config 1 has an invalid interface number: 1 but max is 0
usb 2-1: config 1 has no interface number 0
usb 2-1: configuration #1 chosen from 1 choice
input: PS/2+USB Mouse as /class/input/input8
input: USB HID v1.00 Mouse [PS/2+USB Mouse] on usb-0000:00:1d.1-1