AK4571 Datasheet, PDF (45/54 Pages) Asahi Kasei Microsystems – USB I/F Audio CODEC

ASAHI KASEI
[AK4571]
5.3.
Get Feature Unit Control Request
5.3.1. Mute Control
Offset Field
Size Value
0
bmRequestType 1
0xA1
1
bRequest
1
0x81
2
wValue
2
0x0100
4
wIndex
2
0x0 500
0x0600
0x0800
6
wLength
2
0x0001
Description
GET_CUR
MUTE_CONTROL | CHANNEL_0
Mute for MIC Recording Volume
Mute for MIC Playback Volume
Mute for Lineout Volume
Lower Byte : Audio Control Interface(0x00)
The Length of Mute Control Parameter Block
Offset Field
0
bMute
Size
1
Value
0x01
0x00
Description
TRUE
FALSE
Mute OFF(0x00):
Mute ON(0x01):
FU1(ID5), FU3(ID8)
FU2(ID6)
5.3.2. Bass Boost Control
Offset Field
0
bmRequestType
1
bRequest
2
wValue
4
wIndex
6
wLength
Size
1
1
2
2
2
Value
0xA1
0x81
0x0 900
0x0800
0x0001
Description
GET_CUR
BASS_BOOST| CHANNEL_0
The Length of Mute Control Parameter Block
Offset Field
0
bBassBoost
Size
1
Value
0x01
0x00
BASS BOOST OFF(0x00):
Description
TRUE
FALSE
MS0153-J-02
- 45 -
2003/3