On Sat, Feb 23, 2013 at 9:06 PM, Sipter Bálint <sp...@sch.bme.hu> wrote: > > 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: Libusbx, 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. > > 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
I can not help further myself. Let's see if Hans and Sarah have more suggestions. -- Xiaofan ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
