I2C/IIC working on RPI4 8GB?

Emmanuel Vadot manu at bidouilliste.com
Sat May 1 12:34:56 UTC 2021


On Sat, 1 May 2021 12:48:07 +0100
Mark Murray <markm at FreeBSD.org> wrote:

> On 30 Apr 2021, at 15:22, Klaus Küchemann <maciphone2 at googlemail.com> wrote:
> > 
> > 
> > yet another useful document(at least that's what I hope to fix your usecase) :
> > 
> > https://www.raspberrypi.org/documentation/configuration/config-txt/gpio.md
> 
> BINGO!!
> 
> I added
> 
> gpio=2,3=a0
> 
> to my config.txt file and after a reboot,
> 
> # i2c -f /dev/iic0 -s worked!
> 
> 
> Thank you!
> 
> M
> --
> Mark R V Murray
> 

 This shouldn't be needed at all.
 If we need to rely on the firmware to make basic pinctrl stuff working
it just means that the pinctrl driver isn't complete for RPI4.

-- 
Emmanuel Vadot <manu at bidouilliste.com> <manu at FreeBSD.org>


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