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參數(shù)資料
| 型號： | AK5371VQ |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | AB 5C 2#8 3#12 SKT WALL MT REC |
| 中文描述： | 2聲道的A / D轉換器的USB我/女 |
| 文件頁數(shù)： | 23/32頁 |
| 文件大小： | 256K |
| 代理商： | AK5371VQ |
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23
MS0103-E-00
MS0103-E-00
ASAHI KASEI
[AK 5371]
2001/06
4
Standard requests
4.1
Clear Feature
The AK5371 accepts “Clear Feature” request without stall. Though this request does not influence to the
operation of the device, the AK5371 does not support this request.
4.2
Get Configuration
The AK5371 returns Configuration value.
0
bmRequestType
1
bRequest
2
wValue
4
wIndex
6
wLength
Offset
Size
Value
Description
F ield
1
1
2
2
2
0x80
0x08
0x0000
0x0000
0x0001
GET_CONFIGURATION
AKM USB Mic. has one configuration.
4.3
Get Descriptor
Offset
F ield
0
bmRequestType
1
bRequest
2
wValue
Size
1
1
2
Value
0x80
0x06
0xZZZZ
Description
GET_DESCRIPTOR
ZZZZ is assigned by host:
High Byte is Descriptor Type, Low Byte is Index.
DEVICE : 0x0100 : (Index is 0 only)
CONFIGURATION : 0x0200
STRING: 0x03( is 00, 01, 02)
if wValue is DEVICE or CONFIGURATION, wIndex is
zero. If wValue is 0x0300(LANGID), wIndex is zero.
If wValue is 0x0301 or 0x0302, wIndex is
0x0409“English(US)”.
Descriptor Length (ZZZZ is assigned by host)
4
wIndex
2
0x0000
6
wLength
2
0xZZZZ
4.4
Get Interface
The AK5371 returns the current bAlternateSetting value.
Offset
F ield
Size
0
bmRequestType
1
bRequest
2
wValue
4
wIndex
Value
0x81
0x0A
0x0000
0x0000
0x0001
0x0001
Description
1
1
2
2
GET_INTERFACE
ZERO
Audio Control Interface
Audio Streaming Interface
AKM USB Mic. Has zero bandwidth Audio
Streaming Interface and normal Audio Streaming
Interface.
6
wLength
2
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