[fedora-arm] Re: Fedora 25 on Raspberry PI 2 - SPI, I2C - device tree overlays?

On Thu, Nov 24, 2016 at 3:35 PM, Jan <spljaa@gmail.com> wrote:
> Hi,
> I'm trying to understand if it is possible, and if yes then how, to enable
> I2C and SPI.
> On Raspbian one had to edit config.txt, but here overlays directory on
> partition is empty.
> Is there somewhere documented how to populate folder?
> FAQ on https://fedoraproject.org/wiki/Raspberry_Pi is a bit unclear for me,
> when it says no support for HATs.
> It describes that some manual steps are required. That's fine, however I'm
> not kernel developer,
> I just play with some simple sensors. Using simple python scripts.
> Is a quick answer to such usage: "Not yet"?

So i2c is enabled out of the box so you should be able to scan for i2c
devices with i2cdetect and use them. The spi kernel module is shipped
but I'm not sure it's enabled in the device tree upstream yet (I've
not looked closely).

We don't support overlays via the config.txt file. As I get time to
test and document all the details will be updated in the wiki page.

Peter
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