AK5373 Datasheet, PDF (42/53 Pages) Asahi Kasei Microsystems – 24-bit Stereo ADC with USB Interface

[AK5373]
■ Standard Requests
The AK5373 only supports commands mentioned bellow. If unknown commands are input, the device returns a stall.
1. Clear Feature
Offset
Field
0 bmRequestType
1 bRequest
2 wValue
4 wIndex
6 wLength
Size Value
1 0x00
0x02
1 0x01
2 0x0000
0x0001
2 0x0000
0x0081
0x0082
0x0083
0x0084
0x0085
0x0086
0x0087
2 0x0000
Description
Device
Endpoint
CLEAR_FEATURE
Clear ENDPOINT_HALT
Clear DEVICE_REMOTE_WAKEUP
Device or Endpoint 0
Endpoint 1
Endpoint 2
Endpoint 3
Endpoint 4
Endpoint 5
Endpoint 6
Endpoint 7
Zero
2. Get Configuration
Offset
0
1
2
4
6
Field
bmRequestType
bRequest
wValue
wIndex
wLength
3. Get Descriptor
Offset
0
1
2
Field
bmRequestType
bRequest
wValue
4 wIndex
6 wLength
4. Get Interface
Offset
0
1
2
4
Field
bmRequestType
bRequest
wValue
wIndex
6 wLength
Size Value
1 0x80
1 0x08
2 0x0000
2 0x0000
2 0x0001
Description
GET_CONFIGURATION
One
Size Value
Description
1 0x80
1 0x06
GET_DESCRIPTOR
2 0x0100 Device Descriptor
0x0200 Configuration Descriptor
0x0300 Language ID String Descriptor
0x0301 iManufacturer String Descriptor
0x0302 iProduct String Descriptor
0x0303 iSerial Number String Descriptor
2 0x0000 If wValue is 0x0100, 0x0200 or 0x0300, wIndex is 0x0000.
0x0409 If wValue is 0x0301, 0x0302 or 0x0303, wIndex is Language
ID (0x0409: English (US)).
2 0xZZZZ Descriptor Length (ZZZZ is assigned by Host.)
Size Value
1 0x81
1 0x0A
2 0x0000
2 0x0000
0x0001
2 0x0001
Description
GET_INTERFACE
Zero
Audio Control Interface
Audio Streaming Interface (Alt 0 ~ 7)
One
MS1202-E-00
- 42 -
2010/06