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[Qemu-devel] [Bug 1579306] Re: usb-uas does not work in Windows (10) gue
From: |
Ashish Girdhar |
Subject: |
[Qemu-devel] [Bug 1579306] Re: usb-uas does not work in Windows (10) guest |
Date: |
Thu, 08 Dec 2016 07:33:31 -0000 |
I am also facing this issue.
On further probing, I found out that usb-uas in Qemu doesn't support
"SET_SEL" control command due to which windows driver "uaspstor.sys"
couldn't complete the enumeration.
It is clearly mentioned in USB 3.1 specs that uasp devices should handle
two new control commands - SET_SEL and SET_ISOCH_DELAY.
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https://bugs.launchpad.net/bugs/1579306
Title:
usb-uas does not work in Windows (10) guest
Status in QEMU:
New
Bug description:
When I attach a "-device usb-uas" to a VM with Windows 10 10586, the
device fail to start with the following error in the guest:
"The device cannot start. (Code 10)
{Operation Failed}
The requested operation was unsuccessful"
If the host controller is nec-usb-xhci, there will be two of the
following error on the terminal of the host as well:
"qemu-system-x86_64: usb_uas_handle_control: unhandled control
request"
If it's usb-ehci, ich9-usb-ehci1 or ich9-usb-echi2, this will not show
up on the host side, but the device stil fails with the same error on
the guest side.
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- [Qemu-devel] [Bug 1579306] Re: usb-uas does not work in Windows (10) guest,
Ashish Girdhar <=