I use the Jetson AGX Xavier+carrier board B02, and it connect the I2C device (Addr=0x56) via 40-pin expansion header on carrier board.
CPU: Jetson AGX Xavier (32GB)(P2888-0004)
Carrier board: Jetson AGX Xavier Carrier board (180-82822-DAAF-B02)
I check the schematic of carrier board B02, and see the pin3 and pin5 of 40-pin expansion header are I2C_GP5_DAT and I2C_GP5_CLK, and it connect to the I2C_GP5_DAT and I2C5_CLK of CVM of Xavier module.
But I can’t use i2c-5 to read I2C device 0x56, and it get fail.
I need to use i2c-8 to read I2C deivice 0x56.
root@nvidia-xavier:~# i2cget -y 8 0x2B 0x00 w 0x0417
Why I2C_GP5_DAT and I2C_GP5_CLK is i2c-8?