On Fri, Feb 22, 2013 at 5:31 PM, Sipter Bálint <sp...@sch.bme.hu> wrote:
> Hi,
> we would like to use gphoto2 with multiple cameras at the same time. The
> gphoto2 uses libusb(x) when it is communicating with the cameras.
> Last time tried to use our bash script with a notebook that only had usb3
> ports(the cameras are usb2).
> Unfortunately we ran into some trouble. When we first run gphoto2 everyting
> is fine, but after that we cant use it. Replugging the usb usually helps,
> but sometimes we need to restart.
> We tried debugging for hours, then we came to the conclusion if we disable
> the usb3 ports in the bios(so they work as usb2) everything is working
> again.
> Tired updating the components to the latest releases(gphoto2: 2.5.1.1,
> libghoto: 2.5.1, libusbx git-master,libusb-compat-0.1 git-master, linux
> kernel: 3.8-rc7).
> We tried compiling things in debug mode: Libuzsbx, libusb-compat and linux
> kernel(USB_DEBUG and XHCI_DEBUG).
>
> Here are the log files:
> Correct run: http://pastebin.com/Nh487CXn
> Second run(error): http://pastebin.com/RrcS3f70
> Kernel log from the whole time: http://pastebin.com/gL002CrS
>
>
> Do you have any suggestions? What should I try?
>
> If you have any suggestions please fell free to tell them and I will test
> it. I'm open to anything.
>

I am not so sure if this has anything to do with the following
ticket.
Ref: http://www.libusb.org/ticket/133

Another reference:
http://comments.gmane.org/gmane.comp.lib.libusbx.devel/469
But supposedly that the patch and kernel patch are already in
your kernel version and libusbx.git.




-- 
Xiaofan

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