Dear Ed Hamrick,
This is very good news and will save some effort. Do any of the SANE
drivers currently support Avision command set? If not, are the full
specifications available for them? I would be willing to do some
programming, although I may not be able to start it until later next
month.
Sincerely,
Terence Haddock
On Mon, 28 Aug 2000 EdHamrick@aol.com wrote:
> I recently figured out how to program the HP 5300C (and I
> suspect the HP 3300C).
>
> The 5300C is actually built by Avision, and uses the Avision
> scsi command set. The scsi commands are encapsulated in
> USB reads and writes as follows:
>
> 1) Write CDB to bulk data endpoint
> 2) Read or write command data to/from a bulk data endpoint (if len > 0)
> 3) Read 1 byte of status data from interrupt endpoint (0==success)
>
> There's one input bulk data endpoint, one output endpoint,
> and one interrupt endpoint.
>
> Interestingly, the Minolta Scan Dual II film scanner is also
> built by Avision, and uses the same command set as the
> HP 5300C. I haven't tested the 3300C but I'm
> pretty sure it is built by Avision as well.
>
> The Scan Dual II has VID=0x0638 PID=0x026a
> The HP 5300C has VID=0x03f0 PID=0x0701
> The HP 3300C has VID=0x03f0 PID=0x0205
>
> I write a film scanner program for Windows, Mac, and
> Linux called VueScan (www.hamrick.com) and I have
> version 6.1 working with the Scan Dual II and 5300C
> (on Windows only at the present time). I want to add
> USB scanner support on Linux.
>
> It would be useful if someone would modify the microtek.c
> code to implement the Avision scsi->usb encapsulation.
> This way SANE (and VueScan) would easily be
> able to access Avision scanners through the
> normal SCSI driver.
>
> Alternatively, it would be useful if scanner.c had an ioctl
> that let you read and write a specific endpoint.
>
> Regards,
> Ed Hamrick
>
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