[OpenWrt-Devel] [PATCH] ar71xx: add support for the UniFi AP Outdoor Plus

[Stefan Rompf]

Hi Kirill,

On Dienstag, 19. Mai 2015 15:11:31 Kirill Berezin wrote:

> I think that they tune an external receiver via some sort of SPI bus (GPIO
> pins are 5,6,7,8). Write procedure is quite simple, but I can't still get
> how enable works (for sure it sends a disable); it is quite possible that
> we need to read from a device before sending a command.

impressive! How did you succeed?

I've started looking at two possibilities:

-ARMSim
-Trapping ar5416GpioSet with some hand crafted assembly code that traces calls 
and logs them somewhere (maybe an unused module like fuse could provide kernel 
space to scribble the logs ;-) Now that you decoded the init and disable 
sequences it should be possible to find a command in such a log.

Any hints?

Stefan
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