Re: USB hid blocks USB port in 2.6.28rc3

On Wed, Nov 12, 2008 at 03:31:41PM +0100, Jiri Kosina wrote:

On Tue, 11 Nov 2008, Andi Kleen wrote:

quoted

generic-usb 0003:047B:0011.0002: input: USB HID v1.00 Keyboard [Silitek Standard USB Keyboard ] on usb-0000:00:1d.0-2/input0
usb 3-1: new low speed USB device using uhci_hcd and address 2
/home/lsrc/linux-2.6.28-rc3/drivers/hid/usbhid/hid-core.c: couldn't find an input interrupt endpoint

Hmm, I am wondering about this error. This appears when the keyboard gets 
connected, before you do any of the device shuffling, right?

Yes. The log was over a longer run time and connected and disconnected
several things at different times.

Could you please post /proc/bus/usb/devices before and after you do the 
connection changes?

I did some retesting and right now it looks like the power switch
never works with 2.6.28rc4 (not sure how I got to the conclusion
earlier that it was only after reconnect)

I now always get when I run sispm:

usb 3-2: usbfs: interface 0 claimed by usbhid while 'sispm' sets config #1

On 2.6.27 it works.

Which information do you need exactly out of /sys/bus/usb/devices? 

A simple find on 2.6.28rc4 is:

/sys/bus/usb/devices/
/sys/bus/usb/devices/usb1
/sys/bus/usb/devices/1-0:1.0
/sys/bus/usb/devices/usb2
/sys/bus/usb/devices/2-0:1.0
/sys/bus/usb/devices/usb3
/sys/bus/usb/devices/3-0:1.0
/sys/bus/usb/devices/usb4
/sys/bus/usb/devices/4-0:1.0
/sys/bus/usb/devices/usb5
/sys/bus/usb/devices/5-0:1.0
/sys/bus/usb/devices/1-3
/sys/bus/usb/devices/1-3:1.0
/sys/bus/usb/devices/3-2
/sys/bus/usb/devices/3-2:1.0
/sys/bus/usb/devices/1-3.1
/sys/bus/usb/devices/1-3.1:1.0
/sys/bus/usb/devices/1-3.2
/sys/bus/usb/devices/1-3.2:1.0
/sys/bus/usb/devices/1-3.3
/sys/bus/usb/devices/1-3.3:1.0
/sys/bus/usb/devices/1-3.3:1.1
/sys/bus/usb/devices/1-3.4
/sys/bus/usb/devices/1-3.4:1.0
/sys/bus/usb/devices/1-5
/sys/bus/usb/devices/1-5:1.0
/sys/bus/usb/devices/1-5:1.1
/sys/bus/usb/devices/1-5:1.2
/sys/bus/usb/devices/1-5:1.3

with gembird switch connected.

-Andi
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