On Fri, Oct 26, 2012 at 8:05 PM, Stefano Di Martino <stefan...@gmx.net> wrote: > Here the debug log what I actived before I call > libusb_get_string_descriptor_ascii() > > [timestamp] [threadID] facility level [function call] <message> > -------------------------------------------------------------------------------- > [ 0.953095] [00000b1c] libusbx: debug [composite_submit_control_transfer] > using interface > 3 > [ 0.953095] [00000b1c] libusbx: debug [libusb_claim_interface] interface 3 > [ 0.953095] [00000b1c] libusbx: debug [hid_claim_interface] claimed interface > 3 > [ 0.953095] [00000b1c] libusbx: debug [libusb_get_config_descriptor] index 0 > [ 0.953095] [00000b1c] libusbx: debug [parse_endpoint] skipping descriptor 25 > [ 0.953095] [00000b1c] libusbx: debug [parse_endpoint] skipping descriptor 25 > [ 0.953095] [00000b1c] libusbx: debug [parse_endpoint] skipping descriptor 25 > [ 0.953095] [00000b1c] libusbx: debug [windows_assign_endpoints] (re)assigned > endpoint 83 > to interface 3 > [ 0.953095] [00000b1c] libusbx: debug [auto_claim] auto-claimed interface 3 > for control re > quest > [ 0.953095] [00000b1c] libusbx: debug [hid_submit_control_transfer] will use > interface 3 > > ERROR in retrieving string descriptor: LIBUSB_ERROR_NO_MEM
You may want to post a small prorgam to demonstrate the problem and post the full debug log. The above does not say much. But it seems to me your device is a USB composite device with one of the interface to be HID. You can try xusb example against your device and post the debug log first. -- Xiaofan ------------------------------------------------------------------------------ WINDOWS 8 is here. Millions of people. Your app in 30 days. Visit The Windows 8 Center at Sourceforge for all your go to resources. http://windows8center.sourceforge.net/ join-generation-app-and-make-money-coding-fast/ _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel