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? Is it possible to add support for it?
Thanks in advance,
--
Florian
>From 2b3aee13d093b73aaf42f88ccbf46db35250fc05 Mon Sep 17 00:00:00 2001
From: Florian Klink <flokli@xxxxxxxxx>
Date: Thu, 18 Jun 2015 22:46:15 +0200
Subject: [PATCH] usbip: add support for USB_SPEED_SUPER
---
drivers/usb/usbip/vhci_sysfs.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c
index 211f43f..95339b7 100644
--- a/drivers/usb/usbip/vhci_sysfs.c
+++ b/drivers/usb/usbip/vhci_sysfs.c
@@ -148,6 +148,7 @@ static int valid_args(__u32 rhport, enum usb_device_speed speed)
case USB_SPEED_FULL:
case USB_SPEED_HIGH:
case USB_SPEED_WIRELESS:
+ case USB_SPEED_SUPER:
break;
default:
pr_err("Failed attach request for unsupported USB speed: %s\n",
--
2.4.2
