Hi,
> I don't find the DDK say we can't use PortCls to implement USB Audio Driver.
>
You can do it, I also did :)
> DDK say "The PortCls framework might also be useful for constructing drivers
> for audio device on other hardware buses or for software only device.". So
> PortCls may not wrong way to implement USB Audio Driver.
>
Somewhere else in the DDK it says that for USB sound devices you should use a
standard USB device structure. If you doing it another way, you don't get any
examples from MS. I needed some ugly hacking to get it done anyway.
Regards,
Bart
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