We tried but it didnt help.
https://github.com/libusbx/libusbx/blob/master/libusb/os/linux_usbfs.c#L1707
Here the dpriv->caps is 13 and because of the USBFS_CAP_BULK_SCATTER_GATHER
0x08 the (dpriv->caps & USBFS_CAP_BULK_SCATTER_GATHER) will be true. So the
MAX_BULK_BUFFER_LENGTH is not used...
And here is an lspci -vvv(I forgot that in the first email):
http://pastebin.com/1vjJ6411
2013/2/22 Xiaofan Chen <xiaof...@gmail.com>
> 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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