[sane-devel] Cannot connect to my Fujitsu ScanSnap S1300i: connect_fd: could not open device: 3

[m. allan noah]

Sounds like the typical Linux USB problem. Please see this statement
from the sane 1.0.27 release notes:

Note 3: The Linux USB3 workaround which was added in version 1.0.25 is
now disabled by default. If you have difficulty using a scanner which
previously worked, or intermittent scanner availability, try setting
the new environment variable SANE_USB_WORKAROUND=1 before starting
your frontend.

Please give this a try, and let us know if it helps.

allan

On Mon, Dec 4, 2017 at 5:47 AM, Max Westen <max at dlmax.org> wrote:
> Follow up:
>
> Tried the other USB-port.
> detecting the scanner gives me a hit. Immediately rescanning and the device
> is 'gone':
>
> [max at Luminox test]$ scanadf -L
> device `epjitsu:libusb:002:002' is a FUJITSU ScanSnap S1300i scanner
> [max at Luminox test]$ scanadf -L
> [max at Luminox test]$
>
>
> After some trying, this behaviour keeps the same...
>
> I've prepared a comammandline with the next USB instance, unplug the USB,
> put it back in and then execute the command. Yay it works !
>
> [max at Luminox test]$ scanadf -d "epjitsu:libusb:002:009" --source "ADF
> Duplex" --mode Color --resolution 300dpi -o /tmp/20171204_113055/page_%04d
> --page-height 376
> scanadf: rounded value of page-height from 376 to 375.999
> Scanned document /tmp/20171204_113055/page_0001
> Scanned document /tmp/20171204_113055/page_0002
> Scanned 2 pages
> [max at Luminox test]$ scanadf -L
> device `epjitsu:libusb:002:009' is a FUJITSU ScanSnap S1300i scanner
> [max at Luminox test]$ scanadf -L
> [max at Luminox test]$
>
> but immediately running a scanadf -L afterwards, gets me the correct ID,
> giving the command another time, makes it disappear....
>
> I can't get my head around this, but this isn't really workable....
>
>
> Any help is greatly appreciated!
>
> Max
>
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