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-------------------------------------------------------------------------------
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)
|
