EZ-Key Keypad with integrated audio
Technical Manual
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EZ-Key + Audio - Technical Manual Rev 1 Apr 2015
www.storm-interface.com
Page 3 of 35
USB Device Information
USB HID
The USB interface for EZKEY
+ audio
keypad comprises a USB HUB with keyboard device and audio device
connected.
JACK
SOCKET
(AUDIO)
KEYS
TO PC
The following VID/PID combinations are used:
For USB HUB:
•
VID – 0x0424
•
PID – 0x2512
For Standard Keyboard/Composite HID/Consumer Controlled device
•
VID – 0x2047
•
PID – 0x09BF
For USB Audio device
•
VID – 0x0D8C
•
PID – 0x0170
This document will concentrate on the Standard Keyboard/Composite HID/Consumer Controlled device. This
interface will enumerate as
•
Standard HID Keyboard
• Composite
HID-datapipe
Interface
•
HID Consumer Controlled device
One of the advantages of using this implementation is that no drivers are required.
The data-pipe interface is used to provide the host application to facilitate customisation of the product.
USB AUDIO
DEVICE
HUB
USB KEYBOARD
DEVICE
