[sane-devel] DocketPORT 487: "scanimage: sane_start: Error during device I/O"

[Stef]

On 20/08/2015 00:01, Robert Fleming wrote:
> Here's the dump: https://www.dropbox.com/s/xse1hscuitb8pbm/ds487.pcap
>
> Let me know if there's anything else I can do.
>
> Thanks,
> Robert
>
> On Wed, Aug 19, 2015 at 1:26 PM, Stef <stef.dev at free.fr 
> <mailto:stef.dev at free.fr>> wrote:
>
>     On 19/08/2015 02:11, Robert Fleming wrote:
>
>         Greetings,
>
>         Having trouble getting a DocketPORT 487 going:
>
>         # env SANE_DEBUG_DLL=255 scanimage --resolution 75 >output
>         [sanei_debug] Setting debug level of dll to 255.
>         [dll] sane_init: SANE dll backend version 1.0.13 from
>         sane-backends 1.0.25git
>         ....
>         [dll] sane_open: trying to open `genesys:libusb:002:086'
>         [genesys] WARNING: Your scanner is not fully supported or at least
>         [genesys]          had only limited testing. Please be careful and
>         [genesys]          report any failure/success to
>         [genesys] sane-devel at lists.alioth.debian.org
>         <mailto:sane-devel at lists.alioth.debian.org>. Please provide as
>         many
>         [genesys]          details as possible, e.g. the exact name of
>         your
>         [genesys]          scanner and what does (not) work.
>         [dll] sane_open: open successful
>         [dll] sane_get_option_descriptor(handle=0x8af33d8,option=0)
>         [dll]
>         sane_control_option(handle=0x8af33d8,option=0,action=0,value=0xffc481d4,info=(nil))
>         ....
>
>         scanimage: sane_start: Error during device I/O
>         [dll] sane_cancel(handle=0x8af33d8)
>         [dll] sane_close(handle=0x8af33d8)
>         [dll] sane_exit: exiting
>         [dll] sane_exit: calling backend `genesys's exit function
>         [dll] sane_exit: finished
>
>         Same problem with versions 1.0.23-3ubuntu3.1 and
>         1.0.25-git20150811-trusty0 of the SANE packages.
>
>         I do have the scanner working correctly in Windows (in VirtualBox)
>         with the vendor drivers.
>
>         Any ideas? Is there anything else I can do to debug it? Would
>         it be
>         helpful to get a USB trace (of the Linux and/or Windows cases)?
>
>         Thanks,
>         Robert
>
>         Hello,
>
>         it is slow and difficult to add support for a scanner just by
>     exchanging USB log. However, having a log could give us an
>     estimate of the work to do:
>         see https://github.com/stefdev49/syseneg/analyze/README.md for
>     a start. Then post the pcap file in some place where I can grab it.
>
>     Regards,
>         Ste
>
>
Hello,

     thanks for the data. I have to update my decoding scripts to handle 
GL841 USB protocol before I can analyze the log. I'll let you know when 
it is done.

Regards,
     Stef