Interacting with I2C Peripherals from Linux Console
When you need to interact with I2C peripherals from the Linux console, for example during hardware bringup phase, you can use command line utilities available in the i2c-tools package. This is much faster than making changes in Linux kernel drivers, as no recompilation, installation, or reboots are needed. In my case, it was a camera device, and I had to make sure that the camera was available on the I2C bus. ...