[Arm-netbook] IR controller in Allwinner 10
lkcl luke
luke.leighton at gmail.com
Sat Jan 7 20:44:27 GMT 2012
On Sat, Jan 7, 2012 at 8:18 PM, jonsmirl at gmail.com <jonsmirl at gmail.com> wrote:
> Note that this has to be a hardware timer pin. The kind that will give
> you the number of microseconds between edges. It is too hard to time
> these pulses completely in software. Not all GPIO pins are the same.
> Only a few will have the timer interrupt capability. You want them to
> interrupt on each edge and then record the number of microseconds in a
> FIFO that is gets passed to the kernel's IR subsystem.
hmmm... there's 32 EINT pins (hardware interrupts). in a pinch, you
think that'd do?
what's the data rate on IR?
l.
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