On Fri, Jun 19, 2015 at 12:36:05AM +0200, Florian Klink wrote: > Hey, > > I tried to use usbip to access a USB3 device over the network. > > However, `usbip attach -r $HOST -b $BUS` on the client failed with > > > Failed attach request for unsupported USB speed: super-speed" > > I looked at drivers/usb/usbip/vhci_sysfs.c:150 and discovered > USB_SPEED_SUPER wasn't in the list of supported USB speeds. > > I quickly tried to make it working by adding USB_SPEED_SUPER to the > switch case. > I was now able to attach the device, however the client complained about > a bad usb cable and the hosts dmesg got filled with > > > [332349.125642] usbip-host 3-2: stub up > > [332464.550074] usbip-host 3-2: recv a header, 0 > > [332464.658740] usbip-host 3-2: reset SuperSpeed USB device number 2 using xhci_hcd > > [332464.672536] usbip-host 3-2: device reset > > which comes from drivers/usb/usbip/stub_rx.c:549. > > It seems like usbip_recv gets packages that don't have the size of > usbip_header. > > Is usbip specified for usb3? As you have found out, no, sorry. > Is it possible to add support for it? Sure, patches are greatly encouraged to fix it properly :) thanks, greg k-h -- 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
