Date: Fri, 5 Oct 2012 13:30:10 +0200 From: Hans Petter Selasky <hselasky@c2i.net> To: Guido van Rooij <guido@gvr.org> Cc: freebsd-usb@freebsd.org Subject: Re: usb3 umass device on usb2 port not recognised Message-ID: <201210051330.10129.hselasky@c2i.net> In-Reply-To: <201210051326.42177.hselasky@c2i.net> References: <20121005085727.GA46324@gvr.gvr.org> <201210051326.42177.hselasky@c2i.net>
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On Friday 05 October 2012 13:26:42 Hans Petter Selasky wrote: > On Friday 05 October 2012 10:57:27 Guido van Rooij wrote: > > That piece of code did not help either: > > usb_alloc_device: set address 2 failed (USB_ERR_STALLED, ignored) > > usbd_setup_device_desc: getting device descriptor at addr 2 failed, > > USB_ERR_STALLED usbd_req_re_enumerate: addr=2, set address failed! > > (USB_ERR_STALLED, ignored) usbd_setup_device_desc: getting device > > descriptor at addr 2 failed, USB_ERR_STALLED usbd_req_re_enumerate: > > addr=2, set address failed! (USB_ERR_STALLED, ignored) > > usbd_setup_device_desc: getting device descriptor at addr 2 failed, > > USB_ERR_STALLED ugen5.2: <Unknown> at usbus5 (disconnected) > > uhub_reattach_port: could not allocate new device > > > > Do you know if there is a way to dump the USB-traffic between the disk > > and a Linux system? Like I said earlier, the disk works on Ubuntu > > 12.04, so it might give a clue on the difference between our way of > > resetting the device and their way... (tcpdump only show traffic after he > > rset and address assignment) > > Yes, search for USBmon. Usually there are some device entries which you cat > directly to a file. > > Might be timing related! There is also a tool at sourceforge, vusb-analyzer, which can view these files. --HPS
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