I2C/IIC working on RPI4 8GB?

[Mark Murray]

Hi All,

Does anyone here have IIC/I2C working on a CURRENT (I'm running latest) FreeBSD?

I've never seen it work; Last time I had working IIC was on an RPI3.

There is a /dev/iic0, and I have a known working RTC on it, but the scan just times out:

[root at grasshopper ~]# i2c -s
Hardware may not support START/STOP scanning; trying less-reliable read method.
<TIMEOUT>
Scanning I2C devices on /dev/iic0: <none found>


I suspect something not-quite-right in DTS land, but I lack the knowledge to investigate. I've done some random stumbling around in the dark with overlays and the like, but I've either seen the above error, or a total lack of /dev/iic0.

Thanks!

M
--
Mark R V Murray

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