Hi Krzysztof, and thank you for the help! > Oh now I see. I missed this when I was reading this email for the first > time. > >> root@spark ~ # echo -n 2-10.3 > /sys/bus/usb/drivers/usb/unbind > > > You are trying to unbind here wrong driver I think. Try to unbound driver > for interface instead of for whole device: > > # echo -n 2-10.3:1.0 > /sys/bus/usb/drivers/usb/unbind I've tried to unbind 2-10.3:[0-4].[0-4] but bash always tells me that there's no such device. The strace output is very long, and I can't make much sense of it, but I uploaded it as a GitHub gist: https://gist.github.com/mondalaci/424d145263b5b6160d02bd42ce80247f Cheers! -- László Monda <https://monda.hu> -- 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