I am using the i2c bus quite extensively and have found that it is running at 100KHz. I have decompiled the sun8i-h3-nanopi-neo-core.dtb and confirmed that it is set to 100KHz. The .dts file was modified with a 'clock-frequency' value of <0x61a80> (400000 decimal) and recompiled. After reboot, the l...