[sane-devel] [Firmware File Question] Snapscan e20

[Oliver Schwartz]

Hi,

> I run Sane with my usb snapscan e20 scanner
> whithout any firmware file and nevr noticed any
> problems until today.
> Is this a normal use of the program ?
>
> Should I use a firmware file ?
> or is it necessary only for one that notice
> problems whithout it ?

As far as I know most Agfa / Acer USB scanners require a firmware download 
before they can be used. The scanner may still work without uploading 
firmware, but maybe with limited functionality. I don't know the details for 
the e20, so you have to decide yourself if you need the firmware upload.

For some scanners the scanner ID changes after the firmware upload (as far as 
I know this is also the case for the snapscan e20). This means they are 
treated differently by the backend if firmware is uploaded.

Regards,

Oliver