ASAHI KASEI
[AK4571]
3.5.
Interface Descriptor #2
Standard Audio Streaming Interface descriptor <Alternate Setting 0> (D/A Audio Streaming Data)
Zero Bandwidth
3.5.1.
Offset
Field
bLength
Size
1
1
1
1
1
1
1
1
Value
0x09
0x04
0x02
0x00
0x00
0x01
0x02
0x00
0x00
Description
0
1
2
3
4
5
6
7
10
Length of this descriptor
INTERFACE descriptor
Index of this interface
Index of this setting
endpoints 0
AUDIO
AUDIO_STREAMING
Unused
bDescriptorType
bInterfaceNumber
bAlternateSetting
bNumEndpoints
bInterfaceClass
bInterfaceSubclass
bInterfaceProtocol
iInterface
1
null string
3.5.2.
Operational Interface descriptor <Alternate Setting 1> (D/A Audio Streaming Data)
Offset
Field
BLength
Size
1
1
1
1
1
1
1
1
Value
0x09
0x04
0x02
0x01
0x01
0x01
0x02
0x00
0x00
Description
0
1
2
3
4
5
6
7
8
Length of this descriptor
INTERFACE descriptor
Index of this interface
Index of this setting
Streaming
AUDIO
AUDIO_STREAMING
Unused
bDescriptorType
bInterfaceNumber
bAlternateSetting
bNumEndpoints
bInterfaceClass
bInterfaceSubclass
bInterfaceProtocol
iInterface
1
null string
3.5.3.
Class -specific audio streaming interface descriptor<Alternate Setting 1>
Offset
Field
bLength
bDescriptorType
bDescriptorSubtype
bTerminalLink
Size
Value
0x07
0x24
0x01
0x03
Description
0
1
2
3
1
1
1
1
Length of this descriptor
CS_INTERFACE descriptor
AS_GENERAL
Unit ID of Terminal(Input Terminal)
4
5
bDelay
wFormatTag
1
2
0x00
0x0001
Interface delay
PCM
MS0153-J-02
2003/3
- 34 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
