參數(shù)資料
型號(hào): CM108
廠商: C-Media Electronics Inc.
英文描述: USB Audio I/O Controller
中文描述: USB音頻I / O控制器
文件頁(yè)數(shù): 11/29頁(yè)
文件大?。?/td> 514K
代理商: CM108
CM108
Integration Dual DAC, Earphone Driver, ADC,
Microphone Booster, PLL, Regulator, and USB Transceiver
Date: Nov/01/2004
Version: 1.5
- 18 -
HID Descriptor
Offset
Field
Size
Value (Hex)
Description
0
bLength
1
09
Total 9 Bytes
1
bDescriptorType
1
21
HID Descriptor Type
2
bcdHID
2
0100
HID class version 1.00
4
bCountryCode
1
00
5
bNumDescriptors
1
01
6
bDescriptorType
1
22
Report Descriptor
7
wDescriptorLength
2
0030
Numeric expression that is the total size
of the optional descriptor: 48 Bytes
Interrupt IN Endpoint Descriptor
Offset
Field
Size
Value (Hex)
Description
0
bLength
1
07
Total 7 Bytes
1
bDescriptorType
1
05
ENDPOINT Descriptor Type
2
bEndpointAddress
1
83
IN Endpoint
Endpoint number = 3
3
bmAttributes
1
03
Interrupt endpoint type
4
wMaxPacketSize
2
0004
Maximum packet size: 4 bytes
6
bInterval
1
20
32ms
7.2.5 Windows Software Architecture for HID
Note: Please contact with our sales for the C-Media SDK example if needed.
PCI Enumerator
USB Class Driver(USBD.SYS)
USB HUB Driver(USBHUB.SYS)
USB
HID Class Driver(HIDCLASS.SYS)
Gameport MiniDriver(HIDGAME.SYS)
Gameport
Audio Driver
Keyboard Class Driver
Mouse Class Driver
Joy Stick Class Driver
C-Media SDK
Reports
(device specification)
Winmm.dll
Direct Input
HID.dll
Applications
User32.exe or User.exe
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PDF描述
CM109 USB I/O Controller
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