Johannes Meixner wrote: > Hello, > > On Aug 8 08:04 m. allan noah wrote (shortened): >>unlike scsi, there is no usb class for scanners > > I thought there is even no SCSI class for scanners. > At least my SCSI scanner HP ScanJet 6200C shows up as "Processor": > -------------------------------------------------------------------- > # lsscsi -c > ... > Host: scsi0 Channel: 00 Target: 04 Lun: 00 > Vendor: HP Model: C6270A Rev: 3846 > Type: Processor ANSI SCSI revision: 02 > --------------------------------------------------------------------
Some HP scanners don't support the SCSI command set for scanners; they use some vendor specific command set instead. For these devices it is probably correct that they identify themselves as "processors", i.e., a kind of generic SCSI devices. But this means that sane-find-scanner will detect other fancy SCSI devices too. If my memory does not deceive me, somebody reported problems on this list with a SCSI RAID controller, which presented its "control part" to the Linux kernel as a SCSI processor. Another candidate for this device class would be a tape robot. Abel
