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-------------------------------------------------------------------------------
USB HID (low-speed signalling)
-------------------------------------------------------------------------------
This is a set of example captures of USB/HID communication on the
keyboard/mouse combo device Riitek RT-MWK01.
Details:
http://www.riitek.com/product_Info.asp?id=56
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),
Report ID (1),
Report Count (3),
Report Size (1),
Usage Page (Button), ; Button (09h)
Usage Minimum (01h),
Usage Maximum (03h),
Logical Minimum (0),
Logical Maximum (1),
Input (Variable),
Report Count (1),
Report Size (5),
Input (Constant),
Report Size (8),
Report Count (2),
Usage Page (Desktop), ; Generic desktop controls (01h)
Usage (X), ; X (30h, dynamic value)
Usage (Y), ; Y (31h, dynamic value)
Logical Minimum (-127),
Logical Maximum (127),
Input (Variable, Relative),
End Collection,
Collection (Physical),
Report Count (1),
Report Size (8),
Usage Page (Desktop), ; Generic desktop controls (01h)
Usage (Wheel), ; Wheel (38h, dynamic value)
Logical Minimum (-127),
Logical Maximum (127),
Input (Variable, Relative),
End Collection,
End Collection,
Usage Page (Consumer), ; Consumer (0Ch)
Usage (Consumer Control), ; Consumer control (01h, application collection)
Collection (Application),
Report ID (2),
Usage Minimum (00h),
Usage Maximum (AC Format), ; AC format (023Ch, selector)
Logical Minimum (0),
Logical Maximum (572),
Report Count (1),
Report Size (16),
Input,
End Collection,
Usage Page (Desktop), ; Generic desktop controls (01h)
Usage (Keyboard), ; Keyboard (06h, application collection)
Collection (Application),
Usage Page (Keyboard), ; Keyboard/keypad (07h)
Usage Minimum (KB Leftcontrol), ; Keyboard left control (E0h, dynamic value)
Usage Maximum (KB Right GUI), ; Keyboard right GUI (E7h, dynamic value)
Logical Minimum (0),
Logical Maximum (1),
Report Size (1),
Report Count (8),
Input (Variable),
Report Count (1),
Report Size (8),
Input (Constant),
Report Count (5),
Report Size (1),
Usage Page (LED), ; LEDs (08h)
Usage Minimum (01h),
Usage Maximum (05h),
Output (Variable),
Report Count (1),
Report Size (3),
Output (Constant),
Report Count (6),
Report Size (8),
Logical Minimum (0),
Logical Maximum (-107),
Usage Page (Keyboard), ; Keyboard/keypad (07h)
Usage Minimum (None), ; No event (00h, selector)
Usage Maximum (KB LANG6), ; Keyboard LANG6 (95h, selector)
Input,
End Collection
lsusb -v -d 1997:0409
---------------------
Bus 002 Device 093: ID 1997:0409
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1997
idProduct 0x0409
bcdDevice 2.00
iManufacturer 1 Riitek
iProduct 2 Micro Keyboard
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 63
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
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 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 94
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 10
Device Status: 0x0000
(Bus Powered)
Logic analyzer setup
--------------------
The logic analyzer used was an ARMFLY Mini-Logic (at 24MHz):
Probe RT-MWK01
--------------------
0 DM
1 DP
rt-mwk01.sr
-----------
The sigrok command line used was:
sigrok-cli -d 0:samplerate=24mhz --time 1s -o rt-mwk01.sr --probes 1,2
(the user pressed 'q' again and again; there was no mouse movement)
|
