Renting a bedroom problem

[Ben Landis]

I couldn't find the information I was looking for so I figured someone here has to know! I have a friend who is renting a bedroom in San Jose, CA. Her landlord lives in the rest of the house. She wants to get a new lock on her bedroom that would require a key. Her landlord is fine with this but they want a copy of they key and the ability to enter the room whenever they want. I know if you rent a house a landlord needs to give you 24hr notice before coming by: is this different when you rent a room? I'm just trying to figure out what her legal options are. Thanks!!