[sane-devel] Plustek SmartOffice PS286 Plus

[Ralph Little]

Hi,

On 2021-07-03 8:48 a.m., Marc wrote:
> Hello, here are the information I have gathered on this model. I don't 
> know if it can help getting it supported or not :
>
> ...
> <trying to find out which USB chip is used>
>     checking for LM983[1,2,3] ...
>     this is not a LM983x (bcdUSB = 0x200)
>     checking for GT-6801 ...
>     this is not a GT-6801 (bcdUSB = 0x200)
>     checking for GT-6816 ...
>     this is not a GT-6816 (bDeviceClass = 255, bInterfaceClass = 255)
>     checking for GLxxx ...
>     this is not a GL646 (bDeviceClass = 255, bInterfaceClass = 255)
> <This USB chip looks like a GL843 (result from sane-backends 
> 1.0.31-debian)>
>
> found USB scanner (vendor=0x07b3 [Plustek INC], product=0x0c29 [ADF 
> Scanner  ], chip=GL843) at libusb:002:002

This is not a currently supported model. However, it appears that the 
scanner possibly contains a Genesys controller.
Povilas is our Genesys guru and if he has time he might be able to help 
you out.
I know he has been quite busy though and there is a bit of a backlog of 
Genesys work.

It might be possible to add the basic details of this scanner to the 
Denesys backend to see if it works, but it will almost certainly not 
unless we can determine that it is a rebadge of an existing supported 
machine.
Genesys controllers require specific programming for the ancillary 
hardware such as motors and sensors, and this is usually gleaned from 
USB traces taken of communications with the official Windows driver.
Suffice to say, it is not straightforward. :(

Cheers,
Ralph