[SOLVED] i2cdetect -y 1 failing with "i2c_designware 808622C1:04: controller timed out"
I have a new Up board running Ubuntu 18.04 with the updated Up kernel running on it. When I try to run i2cdetect to scan for an I2C device connected on pins 2 and 3 (marked SDA and SCL for i2c-1), then I get the error message:
i2c_designware 808622C1:04: controller timed out
There is also a warning at the top:
Warning: Can't use SMBus Quick Write command, will skip some addresses.
My user account is in the correct group, and I can access the device just fine.
When I connect the exact same hardware to a Raspberry Pi 3, it works fine, so the I2C hardware and wiring should be all fine, since the pinouts are the same.
I am also having problems getting the UART to work as well, not sure if this is related. Is there a trick to make I2C work?