On Mon, Dec 21, 2015 at 02:17:22PM +0100, Oliver Neukum wrote: > Disconnecting a device is not just a hang up. The device is gone. > We should tell user space the truth immediately. I'm not sure about this one. The usb-serial drivers have always returned -EIO on hangup, whatever the reason, and there's nothing wrong with that implementation. Also note that any further ioctls after returning will also fail with -EIO. I think it makes sense to just stick to -EIO here. Thanks, Johan -- 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