Re: 2.6.19-rc5-mm2 : usb keeps resetting usb keyboard.

From: Gene Heskett
Date: Fri Nov 24 2006 - 23:29:47 EST


On Friday 24 November 2006 22:41, Ed Sweetman wrote:
>I just upgraded from a ps2 keyboard to usb and have been getting these
>messages seemingly randomly, which also corresponds to whatever key i'm
>pressing at the time they occur to act like it's stuck down.
>
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>usb 2-2: reset low speed USB device using ohci_hcd and address 3
>
>(repeated a few hundred times )
>
All the data below doesn't point to the culprit.

I also have this, and I'd bet the common point is going to be an M$
wireless mouse like I have. The mouse works ok as near as I can tell, so
I'm not sure of the exact cause.

To verify, unplug the receiver for that mouse, wait 5secs, and plug it
back in, which if thats it should move the mouse, and the log message to
a higher number on the usb tree.

Also, FWIW dear lkml readers, my logs have been contaminated with this
since about a year ago, running kernel.org kernels on an FC2 system, but
using the latest FC6 non-xen kernel.

>From an lsusb -v:
----------
Bus 002 Device 003: ID 045e:008c Microsoft Corp. Wireless Intellimouse
Explorer 2.0
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x045e Microsoft Corp.
idProduct 0x008c Wireless Intellimouse Explorer 2.0
bcdDevice 0.57
iManufacturer 1 Microsoft
iProduct 2 Microsoft Wireless Optical Mouse 1.0A
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 34
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 50mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 209
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
-------------------

How close am I in this suposition?

--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Yahoo.com and AOL/TW attorneys please note, additions to the above
message by Gene Heskett are:
Copyright 2006 by Maurice Eugene Heskett, all rights reserved.
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