[sane-devel] USB-Sniff Help

[Tabor Kelly]

I am still wading through this log 
(http://tabor.taborandtashell.net/sane-fs2720u/turned_on.LOG). There 
are a couple of places I get confused. If somebody could explain 
exactly what is happening, that would be extremely helpful.

Here is the first place:

 >>>>>>> URB 55 going down...	
   Status = 00000000	
-- URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE:
   TransferBufferLength = 00000092	
   TransferBuffer       = 81eedec8	
   TransferBufferMDL    = 00000000
   Index                = 00	
   DescriptorType       = 01 (USB_DEVICE_DESCRIPTOR_TYPE)	
   LanguageId           = 0000	

<<<<<<< URB 55 coming back...	
   Status = 00000000	
-- URB_FUNCTION_CONTROL_TRANSFER:	
   PipeHandle           = 0x820D8974	
   TransferFlags        = 00000003 (USBD_TRANSFER_DIRECTION_IN, 
USBD_SHORT_TRANSFER_OK)	
   TransferBufferLength = 00000012	
   TransferBuffer       = 81eedec8	
   TransferBufferMDL    = 81f3cee8	

     0000: 12 01 10 01 00 00 00 40 a9 04 53 30 00 00 01 02 	
     0010: 00 01 	
   UrbLink              = 00000000	
   SetupPacket          : 80 06 00 01 00 00 92 00 	
UsbSnoop - IRP_MJ_INTERNAL_DEVICE_CONTROL, IOCTL_INTERNAL_USB_SUBMIT_URB	

And here is the second:

 >>>>>>> URB 58 going down...	
   Status = 00000000	
-- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:	
   PipeHandle           = 0x81F2DCFC	
   TransferFlags        = 00000003 (USBD_TRANSFER_DIRECTION_IN, 
USBD_SHORT_TRANSFER_OK)	
   TransferBufferLength = 000000ff	
   TransferBuffer       = 81a57000	
   TransferBufferMDL    = 00000000	
   UrbLink              = 00000000	

<<<<<<< URB 58 coming back...	
   Status = 00000000	
-- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER:	
   PipeHandle           = 0x81F2DCFC	
   TransferFlags        = 00000003 (USBD_TRANSFER_DIRECTION_IN, 
USBD_SHORT_TRANSFER_OK)	
   TransferBufferLength = 00000024	
   TransferBuffer       = 81a57000	
   TransferBufferMDL    = 81b77ba8	

     0000: 06 00 02 02 1f 00 00 10 43 41 4e 4f 4e 20 20 20 	
     0010: 49 58 2d 32 37 30 32 35 45 20 20 20 20 20 20 20 	
     0020: 31 2e 31 33 	
   UrbLink              = 00000000	
UsbSnoop - IRP_MJ_INTERNAL_DEVICE_CONTROL, IOCTL_INTERNAL_USB_SUBMIT_URB	

Thank You,

Tabor Kelly