...but this USB device is more than a printer!

[dan]

Hi all,

I'll go straight to the point.
Here's  the output from "usbconfig dump_device_desc"

#*
ugen0.3: <Samsung SCX-4100 Series Samsung> at usbus0, cfg=0 md=HOST 
spd=FULL (12Mbps) pwr=ON

   bLength = 0x0012
   bDescriptorType = 0x0001
   bcdUSB = 0x0110
   bDeviceClass = 0x0000
   bDeviceSubClass = 0x0000
   bDeviceProtocol = 0x0000
   bMaxPacketSize0 = 0x0008
   idVendor = 0x04e8
   idProduct = 0x3413
   bcdDevice = 0x0100
   iManufacturer = 0x0001  <Samsung>
   iProduct = 0x0002  <Samsung SCX-4100 Series>
   iSerialNumber = 0x0003  <8J21BAKYB28091W.>
   bNumConfigurations = 0x0001
#*

and here's the output from "usbconfig dump_curr_config_desc"

#*
ugen0.3: <Samsung SCX-4100 Series Samsung> at usbus0, cfg=0 md=HOST 
spd=FULL (12Mbps) pwr=ON


  Configuration index 0

     bLength = 0x0009
     bDescriptorType = 0x0002
     wTotalLength = 0x0020
     bNumInterfaces = 0x0001
     bConfigurationValue = 0x0001
     iConfiguration = 0x0000  <no string>
     bmAttributes = 0x00c0
     bMaxPower = 0x0000

     Interface 0
       bLength = 0x0009
       bDescriptorType = 0x0004
       bInterfaceNumber = 0x0000
       bAlternateSetting = 0x0000
       bNumEndpoints = 0x0002
       bInterfaceClass = 0x0007
       bInterfaceSubClass = 0x0001
       bInterfaceProtocol = 0x0002
       iInterface = 0x0000  <no string>

      Endpoint 0
         bLength = 0x0007
         bDescriptorType = 0x0005
         bEndpointAddress = 0x0003  <OUT>
         bmAttributes = 0x0002  <BULK>
         wMaxPacketSize = 0x0040
         bInterval = 0x0000
         bRefresh = 0x0000
         bSynchAddress = 0x0000

      Endpoint 1
         bLength = 0x0007
         bDescriptorType = 0x0005
         bEndpointAddress = 0x0081  <IN>
         bmAttributes = 0x0002  <BULK>
         wMaxPacketSize = 0x0040
         bInterval = 0x0000
         bRefresh = 0x0000
         bSynchAddress = 0x0000
#*

Userland software, such as sane-find-scanner, is currently sure this is 
is just a printer. I would like this device to introduce itself for what 
it is ... a printer + a color scanner.
Is it feasible? Are there any well-established techniques to (try to) 
reach the goal?

Thanks for any link/suggestion

d