Hello, I'm trying to use i2c (i2c1, i2c4) with fresh installed image "Armbian_21.05.1_Tinkerboard_focal_current_5.10.34.img.xz".

 

The related overlays seems to be enabled by default:

cat /boot/armbianEnv.txt
verbosity=1
bootlogo=false
overlay_prefix=rockchip
overlays=i2c1 i2c4 spi2 spidev2 uart1 uart2
rootdev=UUID=68be20e3-93fc-4c59-95e1-0c534586d070
rootfstype=ext4
usbstoragequirks=0x2537:0x1066:u,0x2537:0x1068:u

 

i2c is enabled by default:

i2cdetect -l
i2c-2	i2c       	rk3x-i2c                        	I2C adapter
i2c-0	i2c       	rk3x-i2c                        	I2C adapter
i2c-5	i2c       	rk3x-i2c                        	I2C adapter

 

What I have missed to setup?

 

Thanks Thomas

Hello

Exactly the same problem

I Try with two images :

Armbian_21.05.1_Tinkerboard_buster_current_5.10.34_xfce_desktop.img

Armbian_21.05.1_Tinkerboard_focal_current_5.10.34_xfce_desktop.img

Any idea

Thanks

Hi

Just change status to status = "okay"; in i2c@ff140000 {...}; and i2c@ff160000 {...};section, recompile dtb and reboot.

Hi Nexon,

 

where should I change the status to what you mentioned? Can you please specify the filename to change? 

 

Thanks

I'm also trying to get my i2c to work albeit on TB2S. What my research has led me to is instantiation of i2c and the new_device... Can anyone confirm the correct way too go about this without having to recompile a kernel, eg userspace?