Device not detected on i2c bus 0 on tx1

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

Hi,
I am having custom board, with i2c device connected over I2C_GP0_DAT(GEN1_I2C_SDA) and CLK on the same i2c.
So it should be on /dev/i2c-0 i.e. i2c bus 0.
Is my assumption correct?
I have also added new sub node under dtsi file for i2c node i2c@7000c000 as i want to load appropriate driver for i2c chip.
Is adding sub node under i2c@7000c000 correct for device on i2c bus 0?
But i could not see device when i run i2cdetect -y -r 0
What could be the reason for device not being able to detect on i2c bus 0?
I am using rel 24.2.1 of Tegra kernel.

Thanks,
Prathamesh

2

@patyarahate
You should probe the i2c bus first. It could be the device didn’t ack.

3

Hi ShaneCCC,

I could probe SDA and SCL lines, i could see waveform that means data getting transmitted on those lines. Not sure about ack received or not.

Thanks,
Prathamesh

4

If you can see something on the waveform that means host send the command. I think it could be the device did ack. You should check the device is working well.