On Feb 7, 2011, at 6:56 PM, Steve Modica wrote:
> Hi All,
>
> I've spent some time today dithering on the Nexus S and host mode and I think
> the way to approach this is different from the Nexus 1 host driver hack.
>
> The Nexus S uses a Fairchild USB switch (fsa8480) to detect device
> connections. I believe the point is to allow the device to handle multiple
> functions like
^^^^^^^^ This should be fsa9480. sorry for the confusion
> charging, UART and USB access simultaneously.
>
> The Switch will detect OTG connections. Plugging in a microB to A convertor
> with pin 4 grounded to 5 causes the fas9480 driver to wake up and report an
> OTG attachment. It also calls into the S3C_UDC_OTG driver to configure it up
> and create a vbus session. (start charging)
>
>
> --
> Steve Modica
> CTO - Small Tree Communications
> www.small-tree.com
>
>
>
>
>
>
>
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>
--
Steve Modica
CTO - Small Tree Communications
www.small-tree.com
phone: 651-209-6509 ext 301
mobile: 651-261-3201
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