Re: Drivers

Djordje Dragic <[email protected]> Fri, 21 Nov 2025 21:56:00 +0100

Newsgroups	gmane.comp.graphics.scanning.sane.devel
Message-ID	<CA+aeyzi_XEL9KqaH_hL1y9tyfN7HJyB_9ZGd-RENN+RsgNQP2Q@mail.gmail.com>

Its ScanJet 3770. I'm currently using it with VueScan in Windows on qemu.

On Fri, Nov 21, 2025 at 7:17 PM Ralph Little <[email protected]> wrote:

> Hi,
>
> On Thu, Nov 20, 2025 at 10:00 AM Djordje Dragic <[email protected]>
> wrote:
>
>> Can we use usb sniffer to help develop drivers? I got hp scanjet that is
>> unsupported in linux.
>>
>
> Yes, it is possible and commonly how it is done. Firstly, a developer
> would probably want to know if the device uses a protocol that is already
> supported.
> Otherwise, writing a new backend is not very difficult but some knowledge
> of the API is required. Usually, it is easier to take an existing backend
> and modify it to suit, at least I found it so.
>
> Out of interest, which ScanJet do you have?
>
> Cheers,
> Ralph
>