Re: host stack device stack switch during otg

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On Tue, Jun 28, 2011 at 02:42:36AM -0700, Bharath Yadav wrote:
> Hi Sarah,
> 
> I am hoping I could get a response. I just wanted to know how does the
> shifting of linux host stack/device stack take place on the OTG
> controller corresponding to the switch in the ID pin values in the controller.
> Does user need to trigger the change in modes from the user space ?
> 
> Please let me know or point me to the sources/docs.

I'm not an OTG expert, but someone on the Linux USB mailing list might
know.  I think the user has to choose which mode they want to be in, but
I also think there's some sort of automatic negotiation between two OTG
devices or an OTG and host only controller.

Sarah Sharp
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