Hi Dmitry, On Fri, Sep 9, 2011 at 20:28, Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote: > On Thu, Sep 01, 2011 at 02:43:32PM +0200, Benjamin Tissoires wrote: >> > + >> > + usbhid_submit_report(dj_rcv_hiddev, &report, USB_DIR_OUT); >> >> This is not working when the receiver is paired to a keyboard. When >> the session launches, Gnome try to send leds commands to the keyboard >> and this results in an oops. >> >> Using a pointer to the struct hid_report solves the crash. >> >> However, Dmitry, you told us about a DMA stack problem. Can you give >> us a better way to handle that? >> > > Actually it is OK, usbhid_submit_report internally allocates DMA_safe > memory for raw report and copies the data for you. Ok, thanks. I'll resubmit the patch ASAP. Cheers, Benjamin > > Thanks. > > -- > Dmitry > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html