[sane-devel] GPL driver for Samsung SCX-4200 MFP

[ABC]

On Sun, Feb 01, 2009 at 10:41:32AM +0100, Julien BLACHE wrote:
> >> Other than that, the backend is conflicting with usblp to claim the
> >> USB device; do you have a way to fix that? Would going over the
> >> emulated parallel port be possible?
> >
> > Strangely, as I'm using standard SANE interface to communicate with usb
> > device. About parallel port - my device is only using usb, so I really
> > don't know much to help about parallel ports.
> 
> The Samsung driver goes over the parallel port, so if the machines are
> the same, the xerox should support that mode too, I guess?

Well, I guess protocol should be the same, but I doubt it's over the same
wire.

There is two interfaces in device, I use sanei_usb_open which is
claiming right interface.

Bus 001 Device 049: ID 0924:3da4 Xerox
    bNumInterfaces          2
    Interface Descriptor:
      bInterfaceNumber        0
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol    255 Vendor Specific Protocol
    Interface Descriptor:
      bInterfaceNumber        1
      bInterfaceClass         7 Printer
      bInterfaceSubClass      1 Printer
      bInterfaceProtocol      2 Bidirectional

[sanei_usb] sanei_usb_init: found libusb device (0x0924/0x3da4) interface 0  at libusb:001:049
[sanei_usb] sanei_usb_init: found 1 devices

How could it conflict?

Is this problem generic with MFP devices?