On Thu, 2015-05-21 at 10:09 +0200, Krzysztof Opasiak wrote: > Could you specify exactly the model? Onda v975w > If android is running fine on it you may check android kernel config > for > this device and check which udc is enabled. No kernel sources from this Chinese vendor. But it looks like the USB_DWC3 config is the one to enable. In the meantime, shouldn't the ffs-test and adbd have failed with ENOTSUPP instead of EBUSY if no hardware support was available? -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html