[sane-devel] OpticFilm 120 Datasheet

[Steve Bowman]

See https://www.electronicsdatasheets.com/download/51bf08b1e34e24b13c000050.pdf?format=pdf for GL126 datasheet.
Steve

> On Sep 30, 2024, at 05:00, sane-devel-request at alioth-lists.debian.net wrote:
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> Today's Topics:
> 
>   1.  Any hints on how to start support for GL128-based Plustek
>      Film Scanner OpticFilm 120? (Erik Beck of Tahoma)
>   2. Re:  Any hints on how to start support for GL128-based
>      Plustek Film Scanner OpticFilm 120? (Erik Beck of Tahoma)
>   3. Re:  Any hints on how to start support for GL128-based
>      Plustek Film Scanner OpticFilm 120? (Ralph Little)
>   4. Re:  Any hints on how to start support for GL128-based
>      Plustek Film Scanner OpticFilm 120? (Bacon At Taha)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 29 Sep 2024 20:10:40 -0400
> From: Erik Beck of Tahoma <bacon at tahoma.com>
> To: sane-devel at alioth-lists.debian.net
> Subject: [sane-devel] Any hints on how to start support for
>    GL128-based Plustek Film Scanner OpticFilm 120?
> Message-ID: <20240929201040.247bffe3.bacon at tahoma.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> Hi,
> 
> I have an OpticFilm 120 and would like to support it; I've been using
> Vuescan on Windows and that software has developed bad regressions,
> which has increased my desire to try and write some Linux support for
> it.
> 
> Any hints on how to start? It uses a GL128 chip from what I have
> figured out so far, which is not currently supported by SANE.
> 
> Thanks,
> 
> Erik
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Sun, 29 Sep 2024 20:47:46 -0400
> From: Erik Beck of Tahoma <bacon at tahoma.com>
> To: sane-devel at alioth-lists.debian.net
> Subject: Re: [sane-devel] Any hints on how to start support for
>    GL128-based Plustek Film Scanner OpticFilm 120?
> Message-ID: <20240929204746.7ebf55b6.bacon at tahoma.com>
> Content-Type: text/plain; charset=US-ASCII
> 
> It might actually be based on a GL126 and an AD9826; Here's some string
> analysis:
> 
> data1.hdr: DRV_U_GL126_A31
> data1.hdr: AD13719F-9FE1-46C2-AB8B-716B5F256BF8:ScndrvU_GL126_A31
> data1.hdr: Ver:1.0.0.5_ (12/08/2014)_(## GL126_Plustek_A120
> 12clk,AD9826) PRODUCT.dat: AsicID = GL126
> 
> 
> 
>> On Sun, 29 Sep 2024 20:10:40 -0400
>> Erik Beck of Tahoma <bacon at tahoma.com> wrote:
>> 
>> Hi,
>> 
>> I have an OpticFilm 120 and would like to support it; I've been using
>> Vuescan on Windows and that software has developed bad regressions,
>> which has increased my desire to try and write some Linux support for
>> it.
>> 
>> Any hints on how to start? It uses a GL128 chip from what I have
>> figured out so far, which is not currently supported by SANE.
>> 
>> Thanks,
>> 
>> Erik
>> 
> 
> 
> 
> 
> ------------------------------
> 
> Message: 3
> Date: Sun, 29 Sep 2024 21:36:11 -0700
> From: Ralph Little <skelband at gmail.com>
> To: Erik Beck of Tahoma <bacon at tahoma.com>
> Cc: sane-devel at alioth-lists.debian.net
> Subject: Re: [sane-devel] Any hints on how to start support for
>    GL128-based Plustek Film Scanner OpticFilm 120?
> Message-ID:
>    <CAFNXweOaR-JtAMLog9FbcebUFjxXKgu=azpxTW-mDcdagL0N9Q at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
> 
> Hi,
> 
> On Sun, Sep 29, 2024 at 5:47?PM Erik Beck of Tahoma <bacon at tahoma.com>
> wrote:
> 
>> It might actually be based on a GL126 and an AD9826; Here's some string
>> analysis:
>> 
>> data1.hdr: DRV_U_GL126_A31
>> data1.hdr: AD13719F-9FE1-46C2-AB8B-716B5F256BF8:ScndrvU_GL126_A31
>> data1.hdr: Ver:1.0.0.5_ (12/08/2014)_(## GL126_Plustek_A120
>> 12clk,AD9826) PRODUCT.dat: AsicID = GL126
>> 
>> 
> AFAIK, the GL126 scanner-on-a-chip doesn't have a publicly available
> datasheet.
> That makes is quite difficult to figure out how to support it.
> 
> The easiest method for getting a basic scan is to capture traffic, and
> replicate it back to the scanner.
> The harder part though is to figure out how to extract the details
> necessary to determine how scan area is determined etc which vary with each
> scan.
> To do a good job, you also need to figure out how to do calibration to an
> acceptable degree to get a decent scan.
> This typically involves taking test scans from a target area outside of the
> normal scan area, formulating adjustment tables, feeding them back to the
> scanner, and iterating until an acceptable result is obtained.
> 
> It's not for the faint of heart that's for sure.
> 
> Cheers,
> Ralph
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> ------------------------------
> 
> Message: 4
> Date: Mon, 30 Sep 2024 05:27:49 -0400
> From: Bacon At Taha <bacon at tahoma.com>
> To: Ralph Little <skelband at gmail.com>
> Cc: sane-devel at alioth-lists.debian.net
> Subject: Re: [sane-devel] Any hints on how to start support for
>    GL128-based Plustek Film Scanner OpticFilm 120?
> Message-ID: <148A33A4-1A27-40C2-99EB-4C9D2E62D1E0 at tahoma.com>
> Content-Type: text/plain; charset="us-ascii"
> 
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> End of sane-devel Digest, Vol 231, Issue 23
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