controlling hub power from linux shell

Question

I am using a buildroot image (3.12 kernel) running on my raspberry Pi with a USB LED light connected to it and I want to control on/off through the CLI.

I went through this. However, there is no control or level file in the power folder.

Is there any kernel configuration that I have to enable to get this ?

Answer 1

Found the answer to this. I have to enable PM_SUSPEND in the kernel configuration to get the class files. But then, as mentioned in the comments, RaspberryPi has the power lines directly connected to the power rails