[sane-devel] sane to work with USB 3.0

m. allan noah kitno455 at gmail.com
Tue Mar 3 15:32:04 UTC 2015

Stef actually made some commits for the LiDE 210 last night- are you
running those?


On Tue, Mar 3, 2015 at 10:27 AM, Heinz Wiesinger
<HMWiesinger at liwjatan.at> wrote:
> On Tuesday 16 December 2014 17:23:43 Heinz Wiesinger wrote:
>> On Tuesday 16 December 2014 10:33:14 m. allan noah wrote:
>> > I have just committed an attempted workaround for this Linux kernel
>> > bug. I have tested with Fujitsu and Canon scanners, and it does fix
>> > the problem. I have not tested with other scanners. We need as much
>> > testing on this as we can get. Please build from a current git
>> > checkout (or tomorrow's git snapshot), and let us know what you find.
>> I fetched the git code and tested this with my Canon Lide 210. The behavior
>> definitely changed, although it's not really working yet. Using xsane, when
>> acquiring a preview I can hear the scanner move now all the time, before it
>> would abort right at the beginning with an invalid command. However, the
>> preview image is not updated and the scanner tries to go beyond it's
>> physical bounds (ie, never stops moving). Scanning itself always aborts
>> with "Failed to start scanner: Invalid argument".
>> I tried to make usb captures with wireshark, they are available here:
>> http://www.liwjatan.at/files/logs/preview.pcapng.gz
>> http://www.liwjatan.at/files/logs/scan.pcapng.gz
>> The first is plug in scanner, start xsane, try to acquire preview and then
>> unplug when it doesn't stop moving.
>> The second is plug in scanner, start xsane, try to scan (2x)
>> I'm running kernel 3.18.0 as well, seeing as that included some USB3 related
>> fixes.
> Retested with kernel 4.0.0-rc1 and the USB3 related patches that came out of a
> recent discussion on linux-usb (http://www.spinics.net/lists/linux-usb/msg120507.html). No dice, still not working :(
> Mike, since your initial report was against the same scanner I have, did you
> happen to have any success yet?
> Grs,
> Heinz

"well, I stand up next to a mountain- and I chop it down with the edge
of my hand"

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