-------------------------------------------------------------------------------
USB HID (full-speed signalling)
-------------------------------------------------------------------------------

This is a set of example captures of USB/HID communication of the
Logitech RX250 optical USB mouse.

Details:
http://www.logitech.com/en-za/support/mice/3141


HID dump
--------

For a HOWTO, see:
http://lists.en.qi-hardware.com/pipermail/discussion/2011-November/009206.html

  Usage Page (Desktop),               ; Generic desktop controls (01h)
  Usage (Mouse),                      ; Mouse (02h, application collection)
  Collection (Application),
      Usage (Pointer),                ; Pointer (01h, physical collection)
      Collection (Physical),
          Usage Page (Button),        ; Button (09h)
          Usage Minimum (01h),
          Usage Maximum (08h),
          Logical Minimum (0),
          Logical Maximum (1),
          Report Count (8),
          Report Size (1),
          Input (Variable),
          Report Count (0),
          Input (Constant, Variable),
          Usage Page (Desktop),       ; Generic desktop controls (01h)
          Usage (X),                  ; X (30h, dynamic value)
          Usage (Y),                  ; Y (31h, dynamic value)
          Usage (Wheel),              ; Wheel (38h, dynamic value)
          Logical Minimum (-127),
          Logical Maximum (127),
          Report Size (8),
          Report Count (3),
          Input (Variable, Relative),
          Usage Page (Consumer),      ; Consumer (0Ch)
          Usage (AC Pan),             ; AC pan (0238h, linear control)
          Report Count (1),
          Input (Variable, Relative),
      End Collection,
  End Collection


lsusb -v
--------

  Bus 003 Device 092: ID 046d:c050 Logitech, Inc. RX 250 Optical Mouse
  Device Descriptor:
    bLength                18
    bDescriptorType         1
    bcdUSB               2.00
    bDeviceClass            0 (Defined at Interface level)
    bDeviceSubClass         0 
    bDeviceProtocol         0 
    bMaxPacketSize0         8
    idVendor           0x046d Logitech, Inc.
    idProduct          0xc050 RX 250 Optical Mouse
    bcdDevice           27.20
    iManufacturer           1 Logitech
    iProduct                2 USB-PS/2 Optical Mouse
    iSerial                 0 
    bNumConfigurations      1
    Configuration Descriptor:
      bLength                 9
      bDescriptorType         2
      wTotalLength           34
      bNumInterfaces          1
      bConfigurationValue     1
      iConfiguration          0 
      bmAttributes         0xa0
        (Bus Powered)
        Remote Wakeup
      MaxPower               98mA
      Interface Descriptor:
        bLength                 9
        bDescriptorType         4
        bInterfaceNumber        0
        bAlternateSetting       0
        bNumEndpoints           1
        bInterfaceClass         3 Human Interface Device
        bInterfaceSubClass      1 Boot Interface Subclass
        bInterfaceProtocol      2 Mouse
        iInterface              0 
          HID Device Descriptor:
            bLength                 9
            bDescriptorType        33
            bcdHID               1.10
            bCountryCode            0 Not supported
            bNumDescriptors         1
            bDescriptorType        34 Report
            wDescriptorLength      59
            Report Descriptor: (length is 59)
              Item(Global): Usage Page, data= [ 0x01 ] 1
                              Generic Desktop Controls
              Item(Local ): Usage, data= [ 0x02 ] 2
                              Mouse
              Item(Main  ): Collection, data= [ 0x01 ] 1
                              Application
              Item(Local ): Usage, data= [ 0x01 ] 1
                              Pointer
              Item(Main  ): Collection, data= [ 0x00 ] 0
                              Physical
              Item(Global): Usage Page, data= [ 0x09 ] 9
                              Buttons
              Item(Local ): Usage Minimum, data= [ 0x01 ] 1
                              Button 1 (Primary)
              Item(Local ): Usage Maximum, data= [ 0x08 ] 8
                              (null)
              Item(Global): Logical Minimum, data= [ 0x00 ] 0
              Item(Global): Logical Maximum, data= [ 0x01 ] 1
              Item(Global): Report Count, data= [ 0x08 ] 8
              Item(Global): Report Size, data= [ 0x01 ] 1
              Item(Main  ): Input, data= [ 0x02 ] 2
                              Data Variable Absolute No_Wrap Linear
                              Preferred_State No_Null_Position Non_Volatile Bitfield
              Item(Global): Report Count, data= [ 0x00 ] 0
              Item(Main  ): Input, data= [ 0x03 ] 3
                              Constant Variable Absolute No_Wrap Linear
                              Preferred_State No_Null_Position Non_Volatile Bitfield
              Item(Global): Usage Page, data= [ 0x01 ] 1
                              Generic Desktop Controls
              Item(Local ): Usage, data= [ 0x30 ] 48
                              Direction-X
              Item(Local ): Usage, data= [ 0x31 ] 49
                              Direction-Y
              Item(Local ): Usage, data= [ 0x38 ] 56
                              Wheel
              Item(Global): Logical Minimum, data= [ 0x81 ] 129
              Item(Global): Logical Maximum, data= [ 0x7f ] 127
              Item(Global): Report Size, data= [ 0x08 ] 8
              Item(Global): Report Count, data= [ 0x03 ] 3
              Item(Main  ): Input, data= [ 0x06 ] 6
                              Data Variable Relative No_Wrap Linear
                              Preferred_State No_Null_Position Non_Volatile Bitfield
              Item(Global): Usage Page, data= [ 0x0c ] 12
                              Consumer
              Item(Local ): Usage, data= [ 0x38 0x02 ] 568
                              AC Pan
              Item(Global): Report Count, data= [ 0x01 ] 1
              Item(Main  ): Input, data= [ 0x06 ] 6
                              Data Variable Relative No_Wrap Linear
                              Preferred_State No_Null_Position Non_Volatile Bitfield
              Item(Main  ): End Collection, data=none
              Item(Main  ): End Collection, data=none
        Endpoint Descriptor:
          bLength                 7
          bDescriptorType         5
          bEndpointAddress     0x81  EP 1 IN
          bmAttributes            3
            Transfer Type            Interrupt
            Synch Type               None
            Usage Type               Data
          wMaxPacketSize     0x0005  1x 5 bytes
          bInterval              10
  Device Status:     0x0000
    (Bus Powered)


Logic analyzer setup
--------------------

The logic analyzer used was a ChronoVu LA8 (at various samplerates):

  Probe       RX250
  -----------------
  2 (white)   DP
  5 (brown)   DM


Data
----

The sigrok command line used was:

  sigrok-cli -d 0:samplerate=<samplerate> --samples=8388608 \
             -p 3='David Prowse',6='Demi Moore' -o <filename>

(samplerate and filename vary)