[sane-devel] Sending confirmation about the pixma backend

Rolf Bensch rolf at bensch-online.de
Sat Oct 12 17:47:28 BST 2019

Hi Rogério,

I opened a merge request for your issue here:

Please build SANE from source as described in INSTALL.linux

If this is working, please pull recent code from git ($ git pull),
checkout our test code ($ git checkout pixma/e4200-adf) and build SANE
again. Then ADF should work. Please report your results in the merge

Many thanks for your help.


Am 09.10.19 um 07:16 schrieb Rogério Brito:
> Dear Rolf,
> On Oct 07 2019, Rolf Bensch wrote:
>> I can see an error response in your log file.
> First of all, sorry for not being able to respond earlier, but I'm having
> some quite hectic days. Second, thank you very much for helping with this.
>> To fix this I need an USB snoop file from Canon's ScanGear Software. You
>> can use wireshark for snooping (to enable USB support read this:
>> https://wiki.wireshark.org/CaptureSetup/USB).
> I took 2 captures of 2 pages from the ADF: once in "Text Mode" and another
> in whatever other mode is available.
> In both cases, the resulting PDF file had files in 300dpi in JPEG format and
> they were 3-channel JPEGs. There doesn't seem to be any way of changing the
> resolution or format that the files will be saved in.
> Regarding the captures, I don't know if I should send them attached via
> email or posted somewhere, but I will send the 1st one here and post both on
> my homepage at:
>     https://www.ime.usp.br/~rbrito/linux/canon-e4210/
>> Many thanks for your help.
> Many thanks for your help! If you need other information, please let me know
> and I will try my best.
> Thank you very much again,
> Rogério Brito.

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