Hi there, currently I am using Olimex A20-LIME2 board with the OLinuXino-A20 Linux and kernel version 3.4.103-00033-g9a1cd03-dirty . I wanted to emulate my board as a Keyboard when it connect to a HOST PC and to do so I followed theses instruction here to pass platform_device structure to the gadget driver :
https://www.kernel.org/doc/Documentation/usb/gadget_hid.txt when I modprobe g_hid module my board works fine with Linux host PC but with Windows host PC my board kernel crashed . even Windows couldn't find the right driver for my HID gadget . any suggestion would be appreciated . Thanks dmesg output > [ 207.682916] [sw_udc]: [sw_usb_udc]: binding gadget driver 'g_hid' [ 207.687750] [sw_udc]: alloc request: ep(0xc07f5d58, ep0, 64), req(0xeea241c0) [ 207.702464] [sw_udc]: alloc request: ep(0xc07f5da4, ep1-bulk, 64), req(0xee4f1f80) [ 207.714056] g_hid gadget: HID Gadget, version: 2010/03/16 [ 207.722503] g_hid gadget: g_hid ready [ 207.727062] [sw_udc]: usbd_start_work [ 207.784889] [sw_udc]: IRQ: suspend [ 207.787022] [sw_udc]: ERR: usb speed is unkown [ 207.901021] [sw_udc]: IRQ: reset [ 207.902980] [sw_udc]: irq: reset happen, throw away all urb [ 207.991123] [sw_udc]: [ 207.994713] +++++++++++++++++++++++++++++++++++++ [ 207.995604] [sw_udc]: usb enter full speed. [ 207.998587] [sw_udc]: [ 208.002161] +++++++++++++++++++++++++++++++++++++ [ 208.008129] retire_capture_urb: 43 callbacks suppressed [ 208.014357] [sw_udc]: IRQ: reset [ 208.016303] [sw_udc]: irq: reset happen, throw away all urb [ 208.094947] [sw_udc]: Set address 24 ////////////////////////// after start using the user space test application ///////////////////////////////////////////////////////////////////////////////// [ 422.287745] WRN:L2385(drivers/usb/sunxi_usb/udc/sw_udc.c):ERR: sw_udc_queue: inval 2 [ 422.295851] g_hid gadget: usb_ep_queue error on int endpoint 4294967274 -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
