If you are using Python, why don't you use MRAA?
Or maybe you want to use SMBUS : Re: difficulty installing python-smbus
On the command line, I know there is i2cset and i2cget but you would need to compile that for the Edison
Thanks for your help
I have another code running well in my edison.
I do not know why I just type in import mraa. The another code will have problem.
So I have to avoid mraa. The problem I described https://communities.intel.com/thread/76964?sr=inbox
I will try SMBUS.
have a nice day