In the Garden of Eden example, Eve and later Adam required free will in order to choose not to do as god commanded, however just because the snake (whom I do not believe was Satan, otherwise the bible would say so) required them to exercise that free will does not mean that he gave it to them.
Mind you, in order to have free will, you have to be able to choose your actions, if you are 'free' to choose your actions, that means you free to act in such a way that contradicts god's desires for you. If that is the case, then you are either free to knowingly do so, which would require that we know what god intends (few people other than me would be so arrogant as to assume that) and choose not to do so; or else we would not know what god intends and therefore along with free will, God's real gift was ignorance (which given my name, I have to say that yes, I truly am a gift to all mankind)