[sane-devel] [ANN] Canon Pixma Scanner Driver (stand-alone)

[Martin Schewe]

Hi Farvil,

On Sun, Mar 26, 2006 at 11:20:14PM +0200, Farvil wrote:
> I saw that you published the pixma-0.3 release and add a model 
> description for the MP150.

I just took the product id and the endpoints from [1] and hoped that the
protocol could be the same as the one used by a MP750, but...

> ff 20 00 00 00 00 00 00 10 00
> expecting 2 status and 0x0010 answer bytes...
> Incomplete read
> 
> cf 60 00 00 00 00 00 00 0a 00
> 01 00 00 00 00 00 00 00 00 ff
> expecting 2 status and 0x0000 answer bytes...
> ERR

...does not look promising.  Though the last line shows that your
scanner uses the same error status code (0x1515) anyway -- otherwise my
little dumb driver would have written "???" instead of "ERR".

Please download http://pixma.schewe.com/log2io, sniff a scan of some
tiny (!) picture and run

$ ./log2io your.log

You will hopefully get something like

03: cf 60 00 00 00 00 00 00 0a 00 01 00 00 00 00 00 00 00 00 ff
84: 06 06
03: cf 60 00 00 00 00 00 00 0a 00 01 00 00 20 00 00 00 00 00 df
84: 06 06
03: e9 20 00 00 00 00 00 00 00 00
84: 06 06
03: db 20 00 00 00 00 00 00 00 00
84: 06 06
03: dd 20 00 00 00 00 00 00 0a 00 01 01 00 00 00 00 00 00 00 fe
84: 06 06
03: de 20 00 00 00 00 00 00 2e 00 00 00 00 00 80 96 80 96 00 00 00 08 00 00 00 0
84: 06 06
03: f3 20 00 00 00 00 00 00 0c 00
84: 06 06 03 01 00 02 03 00 02 03 00 00 00 f2
85: 00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00
03: f3 20 00 00 00 00 00 00 0c 00
84: 06 06 03 01 00 02 03 00 02 03 0f 00 00 e3
03: d4 20 00 00 00 00 00 00 04 00
84: 06 06 00 00 00 00
03: f3 20 00 00 00 00 00 00 0c 00
84: 06 06 03 01 00 02 03 00 02 03 0f 00 00 e3
03: d4 20 00 00 00 00 00 00 04 00
84: 06 06 00 00 00 00
03: d4 20 00 00 00 00 00 c0 04 00
84: 06 06 00 00 c0 00
[...]

The first ~30 lines will be enough to analyse whether your scanner's
command set has any similarities with a MP750.

Good luck,
		Martin

[1] http://sane-project.org/unsupported/canon-pixma-mp150.html and hoped