Watch the Trout talk online guitar lesson by TrueFire from Play Blues Guitar 8: Advanced Rhythm Approaches
Trout talk - Rhythm #21 is a video guitar lesson presented by Jeff Scheetz and is sourced from 50 Blues Rock Rhythms You MUST Know.
Walter Trout is a dynamic blues player that uses rock elements in his tunes while keeping it bluesy. This riff uses a technique that he is a master of - going from a chord shape to a single note riff rather quickly. Try to work on this one in separate parts - first just get the single note part down and then add the chords in.