On Wed, May 03, 2000, Mike Davison <[EMAIL PROTECTED]> wrote:
> > On Wed, May 03, 2000, Mike Davison <[EMAIL PROTECTED]> wrote:
> > > T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= -1 Spd=12 MxCh= 0
> > > D: Ver= 0.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 0 #Cfgs= 0
> > > P: Vendor=0000 ProdID=0000 Rev= 0.00
> > >
> > > The last 3 lines show up when the camera is connected, but seem incomplete.
> > > When I used this successfully a few days ago it seems like there was more
> > > data there.
> > >
> > > So, does anyone have any suggested debugging techniques? I'm not sure how
> > > to proceed.
> >
> > Those last three lines tell us that something went wrong during the
> > enumeration process. There should be something in your logs. Can you
> > give us the output from dmesg pertaining to USB?
>
> Sure, I should have thought to add that information. Here it is:
>
> hub.c: port 2 connection change
> hub.c: portstatus 101, change 1, High Speed
> hub.c: portstatus 103, change 0, High Speed
> usb.c: USB new device connect, assigned device number 2
> usb_control/bulk_msg: timeout
> usb_control/bulk_msg: timeout
> usb_control/bulk_msg: timeout
> usb_control/bulk_msg: timeout
> usb_control/bulk_msg: timeout
> usb.c: USB device not responding, giving up (error=-110)
> hub.c: hub: disabling port 2
> hub.c: port 2 connection change
> hub.c: portstatus 100, change 3, High Speed
> usb.c: USB disconnect on device -1
A couple of things may be happening:
a) The device is continually NAKing every transfer (Unlikely)
b) There is a bad cable (Possible)
c) Interrupts aren't being delivered (Possible)
Can you check /proc/interrupts to see if the interrupt count is going up
at all?
> > Although it probably won't make too much of a difference, which UHCI
> > driver are you using?
>
> Hmmm... The header for drivers/usb/usb-uhci.c says:
[snip header]
I didn't need the header, just the name :) Thanks
JE
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