plustek@linuxhacker.org

Subject: Re: Fw: Need guide to add Cacnon D660U support to plustek-usbdevs.c
From: Gerhard Jaeger
Date: Fri, 28 Nov 2003 13:51:35 +0100

Hi Alexander,

first of all, there's no need to send me the mail too, 'cause I'm subscribed.
Second:

On Tuesday 25 November 2003 19:49, Alexander Leidinger wrote:
[SNIPSNAP]
> <trying to find out which USB chip is used>
>     checking for GT-6801 ...
>     this is not a GT-6801 (bDeviceClass = 0)
>     checking for GT-6816 ...
>     this is not a GT-6816 (bNumEndpoints = 3)
>     checking for MA-1017 ...
>     this is not a MA-1017 (bDeviceClass = 0, bInterfaceClass = 255)
>     checking for MA-1015 ...
>     this is not a MA-1015 (bDeviceClass = 0)
>     checking for MA-1509 ...
>     this is not a MA-1509 (bDeviceClass = 0)
>     checking for LM983[1,2,3] ...
>   Couldn't access LM983x registers.

this in fact is bad! It seems, that the 660 does not really contain a LM9831
or higher.

> Now I need some guide how to proceed further.

Is it possible to open the device and to have a close look to the chipset?
Or can you do some usb-logging using USB-snoopy? The setup sequence
would be interesting. Probably we see, what's going on.

Ciao,
  Gerhard