USB Audio Class 2.0 Host driver, inter-operability test protocol?

[dav1]

Hi,

For the UAC2.0 driver running in host mode, is there a list of how it has been tested?

i.e.

• inter-operability with class compliant sound-cards, both UAC1 and UAC2?
• High-Speed low-latency mode?
• 2ch vs multi-channel
• via hub?

thanks

[xiangjun_rong]

Hi,

I suppose I have to ask SDK software team for the test method.

Before I ask the SDK team, can you tell us the part number you are using, what is your project?

BR

XiangJun Rong

[dav1]

LPC55S69JEV98

project is a consumer audio device 

[xiangjun_rong]

Hi,

This is our AE feedback, pls refer to it.

"

Refer USB Stack Host reference manual document first, some questions' answer list as below：

1. inter-operability with class compliant sound-cards, both UAC1 and UAC2?

"The MCUXpresso SDK USB stack provides support for USB Audio Class 1.0 and USB Audio Class 2.0."

2. High-Speed low-latency mode?

No support yet, but user can modify code to increase necessary buffers for low-latency mode.

3. 2ch vs multi-channel

support multi channel.

3. via hub?

VIA HUB tested

"

BR

XiangJun Rong

[dav1]

hi,

can you please help guide me to where I can I find

- the latest version of this usb device driver

- release-notes of changes made to the usb-audio-class 2 device support (any nxp cpu is fine, LPC, RT, etc.)

- since the example code is duplicated for each mcu, where do I find the origin of the uac2 driver itself vs the most recent example implementation?