From: David Ahern <dsahern@gmail.com>
To: Erik Rull <erik.rull@rdsoftware.de>
Cc: kvm@vger.kernel.org
Subject: Re: USB Scanner
Date: Mon, 03 Jan 2011 16:50:33 -0700 [thread overview]
Message-ID: <4D2260C9.60405@gmail.com> (raw)
In-Reply-To: <4D225D30.6030907@rdsoftware.de>
On 01/03/11 16:35, Erik Rull wrote:
> David Ahern wrote:
>>
>>
>> The attached work for me with an Epson CX7800. I was able to print and
>> scan with Vista; driver setup for XP was more of a pain - I only got the
>> printer setup working.
>>
>> It's the EHCI code from
>>
>> git://git.kiszka.org/qemu.git ehci
>>
>> with http://www.mail-archive.com/qemu-devel@nongnu.org/msg38795.html and
>> a couple of local additions. Applies cleanly to qemu-kvm.git as of today
>> (b724fa4bb46b82c54b5f0a2cf9177194020433efO).
>>
>> EHCI is not ready for prime time, but works for use cases like this one.
>>
>> David
>>
>
> Hi David,
>
> thanks for the patch.
> Have you tested USB transfer rates using a USB Memory Stick or something
> similar? If yes, which transfer rates have you reached?
USB keys (storage devices) were the primary target I used for testing.
In fact, with EHCI I can run a linux guest from a USB key just fine -
something I just verified again:
qemu-kvm -usbdevice host:${USBDEV}
where USBDEV is the vendor:product id from lsusb. Add other args to
install from a CD/DVD to the USB key. If your mileage varies first and
foremost make sure the VM is using kvm -- speed is horrible with qemu/tcg.
David
>
> Best regards,
>
> Erik
> --
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next prev parent reply other threads:[~2011-01-03 23:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-03 8:41 USB Scanner Matthias Henze (L)
2011-01-03 15:43 ` Erik Rull
2011-01-03 22:59 ` David Ahern
2011-01-03 23:35 ` Erik Rull
2011-01-03 23:50 ` David Ahern [this message]
2011-01-04 0:21 ` David Ahern
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