On Wed, Nov 28, 2012 at 8:18 AM, Pete Batard <p...@akeo.ie> wrote: > [ 0.812485] [00001bf8] libusbx: error [cache_config_descriptors] could > not access configuration descriptor (actual) for > '\.USB#VID_16D0&PID_05BE#6&5FF1707&0&2': [31] A device attached to the > system is not functioning. > > We're not doing anything fancy but sending a basic Windows IOCTL for > that, so I'd rally with Tim in thinking that Windows may not find your > descriptors compliant enough. And I'm ready to bet that Microsoft's > USBView [1] will also fail reading your descriptors. > > Can you install the latest MS debugging tools [2], that contain USBView > (in something like C:\Program Files (x86)\Windows > Kits\8.0\Debuggers\x86), and find out if it too has trouble accessing > your descriptors? > > Regards, > > /Pete > > [1] > http://msdn.microsoft.com/en-us/library/windows/hardware/ff560019%28v=vs.85%29.aspx > [2] http://msdn.microsoft.com/en-us/windows/hardware/gg463009
Or the smaller download of usbview from FTDI website. http://www.ftdichip.com/Support/Utilities.htm http://www.ftdichip.com/Support/Utilities/usbview.zip -- Xiaofan ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: INSIGHTS What's next for parallel hardware, programming and related areas? Interviews and blogs by thought leaders keep you ahead of the curve. http://goparallel.sourceforge.net _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
