[sane-devel] scsi scanner on usb port?

abel deuring a.deuring@satzbau-gmbh.de
Mon, 31 Mar 2003 22:42:44 +0200


Henning Meier-Geinitz wrote:

 > Hi,
 >
 > On Mon, Mar 31, 2003 at 12:04:46AM +0200, abel deuring wrote:
 >
 >> You would need a sort of a USB <-> SCSI adapter on the scanner side, 
which is supported by a driver of the Linux kernel. This driver would 
have to register the "USB-tunnel-connected" SCSI scanner in the Linux 
SCSI system and it would have to handle the communication betwwen the 
Linux box and the scanner. In order to do that, it would have to know, 
how the USB/SCSI converter works. There seem to exist two such drivers 
-- but I believe that these are special drivers for Microtek resp. HP 
scanners.
 >
 >
 >
 > I think these drivers are just for normal USB scanners that happen to
 > use a SCSI-over-USB protocoll. This could be done in userspace also
 > (done in the avision backend some days before).


Is there a standard how SCSI commands can be sent via an USB connection?

 >
 > I don't know if such thing exist but wouldn't a general SCSI
 > controller work that has an usb connector instead being a PCI card?


Yes, that could work, if a driver exists for such a device, or if the 
backend knows how to send SCSI commands via such a USB/SCSI converter. 
But as I understood Andre, he was looking for some sort of 
out-of-the-box solution for a Umax scanner, and I'm afraid that we can't 
offer that,

Abel