On 24.10.2012 12:58, Alan Stern wrote:
> On Wed, 24 Oct 2012, Matthias Schniedermeyer wrote:
>
> > > According to this, it should work if you do:
> > >
> > > echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue
> > >
> > > Note that the "2-3" part may change from time to time. Always use the
> > > values the showed up in the log when the device was turned on.
> >
> > This didn't work:
> >
> > I tried it twice, with a few minutes wait in between:
> > - snip -
> > leeloo:~ # echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue
> > -bash: echo: write error: Invalid argument
> > leeloo:~ # echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue
> > -bash: echo: write error: Invalid argument
> > - snip -
> >
> > The syslog-lines:
> > Oct 24 18:09:11 leeloo kernel: [930673.742358] usb 2-3: new SuperSpeed USB
> > device number 13 using xhci_hcd
> > Oct 24 18:09:21 leeloo kernel: [930683.743447] usb 2-3: New USB device
> > found, idVendor=174c, idProduct=5106
> > Oct 24 18:09:21 leeloo kernel: [930683.743452] usb 2-3: New USB device
> > strings: Mfr=2, Product=3, SerialNumber=1
> > Oct 24 18:09:21 leeloo kernel: [930683.743454] usb 2-3: Product: AS2105
> > Oct 24 18:09:21 leeloo kernel: [930683.743456] usb 2-3: Manufacturer:
> > ASMedia
> > Oct 24 18:09:26 leeloo kernel: [930688.738595] usb 2-3: can't set config
> > #1, error -110
> >
> > First-Try:
> > Oct 24 18:09:51 leeloo kernel: [930713.543126] xhci_hcd 0000:00:14.0:
> > Trying to add endpoint 0x81 without dropping it.
>
> Okay, this looks like a bug in the xhci-hcd driver. It may possibly
> have been fixed already in the 3.7-rc2 kernel; you could try out that
> version.
>
> If that also gives the same error message about adding endpoint 0x81,
> maybe Sarah can take a look at the problem.
I tried 3.7-rc2 (exactly, i think)
This isn't the same computer, but the same('oldconfig'ed)
configuration. This computer has a NEC-chip for xhci.
uname -a:
Linux exp 3.7.0-rc2 #1 SMP Wed Oct 24 19:45:48 CEST 2012 x86_64 GNU/Linux
First:
Oct 24 20:17:52 localhost kernel: [ 118.531900] usb 4-1: new SuperSpeed USB
device number 2 using xhci_hcd
Oct 24 20:17:52 localhost kernel: [ 118.546081] usb 4-1: Parent hub missing
LPM exit latency info. Power management will be impacted.
Oct 24 20:18:02 localhost kernel: [ 128.518344] usb 4-1: New USB device found,
idVendor=174c, idProduct=5106
Oct 24 20:18:02 localhost kernel: [ 128.519551] usb 4-1: New USB device
strings: Mfr=2, Product=3, SerialNumber=1
Oct 24 20:18:02 localhost kernel: [ 128.520696] usb 4-1: Product: AS2105
Oct 24 20:18:02 localhost kernel: [ 128.521828] usb 4-1: Manufacturer: ASMedia
Oct 24 20:18:07 localhost kernel: [ 133.507705] usb 4-1: can't set config #1,
error -110
Command:
echo 1 >/sys/bus/usb/devices/4-1/bConfigurationValue
Same response as before:
Oct 24 20:18:50 localhost kernel: [ 176.642856] xhci_hcd 0000:04:00.0: Trying
to add endpoint 0x81 without dropping it.
Bis denn
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