Re: [PATCH v3] usb: add new usb gadget for ACM and mass storage

[Alan Stern]

On Mon, 10 Oct 2011, Klaus Schwarzkopf wrote:

> >> +	.bDeviceClass =		USB_CLASS_COMM,
> >> +	.bDeviceSubClass =	0,
> >> +	.bDeviceProtocol =	0,
> 
> Should bDeviceClass, bDeviceSubClass, and bDeviceProtocol have the same 
> value like in the file multi.c?
> 
> 	.bDeviceClass =		USB_CLASS_MISC /* 0xEF */,
> 	.bDeviceSubClass =	2,
> 	.bDeviceProtocol =	1,

This may or may not be relevant...  The USB 2.0 spec (Table 9-8) says
that if bDeviceClass is 0 then each interface specifies its own class
information and the interfaces operate independently.  Isn't that what 
you want?

Alan Stern

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