https://bugzilla.kernel.org/show_bug.cgi?id=193571 I'd like to someone from the bluetooth community to just take a quick at this bug report and help me identify the likely source of the issue. btusb driver? usb subsystem? The symptoms are --after I suspend my laptop (10 min or more) and then resume, the bluetooth adaptor no longer functions. I have to reset the bluetooth usb device to get it working again. echo 0 > /sys/bus/usb/devices/1-4/authorized echo 1 > /sys/bus/usb/devices/1-4/authorized What's the likely cause of this? Is the bluetooth adaptor losing power or it's firmware during a suspend cycle? Looking at the btusb driver, I found this --------------------------------------------------------------------- #ifdef CONFIG_BT_HCIBTUSB_RTL if (id->driver_info & BTUSB_REALTEK) { hdev->setup = btrtl_setup_realtek; /* Realtek devices lose their updated firmware over suspend, * but the USB hub doesn't notice any status change. * Explicitly request a device reset on resume. */ set_bit(BTUSB_RESET_RESUME, &data->flags); } #endif ------------------------------------------------------------------------ I'm interested in trying this method for my bluetooth adaptor. I'm not a kernel developer...but if someone could show me what changes need to made to btusb driver so it would be work with my bluetooth adaptor (0cf3:e300) I could compile the driver and test it out. Thanks! -Leif -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
