AK5371A Datasheet, PDF (25/32 Pages) Asahi Kasei Microsystems – 2ch A/D Converter with USB I/F

ASAHI KASEI
[AK5371A]
4.8 Set Feature
The AK5371A accepts “Set Feature” request without stall. However note that the AK5371A does not support this
request.
4.9 Set Interface
Audio format can be changed by the combination of Interface Number and Alternate Setting. Only 0x0000 is valid
if wIndex is 0x0000
Offset Field
Size Value
Description
0
bmRequestType 1 0x01
ONE
D7 0 = Host to device
D6..5 0 = Standard request
D4..0 1 = Recipient is interface
1
bRequest
1 0x0B
SET_INTERFACE
2
wValue
2
Alternate Setting
0x0000
Control Interface or Zero Bandwidth
0x0001
16bit Mono
0x0002
16bit Stereo
4
wIndex
2 0x0000
Audio Control Interface
0x0001
Audio Streaming Interface
6
wLength
2 0x0000
Zero
MS0546-E-00
MS0103-E-00
25
2007/02