[Arm-netbook] IR controller in Allwinner 10

[jonsmirl at gmail.com]

On Sat, Jan 7, 2012 at 11:03 AM, Iliya Georgiev <ikgeorgiev at gmail.com> wrote:
> I found on Allwinners site a diagram showing the A1X chip family has an
> infrared controller. It can be useful for remote control device if someone
> wants to use the product as IPTV.

It is probably IRDA which is a way tablets communicate data. That is
incompatible with consumer IR.

A GPIO timer pin works just fine as an interface to an IR receiver
chip. The IR receiver chip demodulates the IR signal down to baseband.
Then the timer GPIO times the edge transitions. The timing of the edge
transitions is fed into the kernel's IR subsystem.

> If it is not included already as a feature, this is my suggestion. May be
> some of the pins of the 44-pin expansion header can be used.
>
> Allwinner A1X diagram:
>
> http://www.allwinnertech.com/product/a1x.html
>
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-- 
Jon Smirl
jonsmirl at gmail.com