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Re: [Qemu-devel] [Bug 1385934] Re: USB with passthrougth guest cannot en
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From: |
Gonglei |
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Subject: |
Re: [Qemu-devel] [Bug 1385934] Re: USB with passthrougth guest cannot enumerate USB host |
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Date: |
Mon, 10 Nov 2014 14:04:17 +0800 |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20120327 Thunderbird/11.0.1 |
On 2014/11/9 2:47, MikeFrysinger wrote:
> the problem is this commit:
> http://git.qemu.org/?p=qemu.git;a=commit;h=b791c3b38c7969cb9f4acda8229e19fd865a1c08
>
> it's easy to reproduce -- plug in a USB flash drive and try to pass it
> through
>
What's your USB flash drive's version? USB1.1 or USB2.0 or 3.0?
Please post the value:
1.cat /sys/bus/usb/device/xx-xx/speed [xx-xx: hostbus-hostport]
2.And your exact command line launched Qemu .
Best regards,
-Gonglei
> on the host:
> $ lsusb
> Bus 003 Device 004: ID 1307:0163 Transcend Information, Inc. 256MB/512MB/1GB
> Flash Drive
>
> so launch qemu with that:
> -usbdevice host:1307:0163
>
> and then in the VM, if it fails, you get those errors in dmesg, and the
> device doesn't show up in `lsusb`. if it passes, `lsusb` reports it
> fine.
>