Many will help you create the smoke you desire, but don't be discouraged if you smoker produces a different smoke. Take the time to keep notes and learn how to use your smoker the way it was designed. By learning how to use different colors and densities of smoke, you will discover your smoking options will be greatly increased.
You will want to keep record of the type of species of the wood, the type of wood, dust, chips, pellets or chunks and the amount by weight. What you are cooking along with the ambient, internal smoker and internal product temps, color and the density of the smoke along with the time the smoke is applied. Smoke may not need to be applied for the whole duration of the cook. Most likely your personal taste will determine this.
It may seem like a lot of work in the beginning, but the information collected will become invaluable information in the future. You can keep records of your results by smoking and observing the results by smoking crackers. It will give you a good idea of the difference each change makes. By taking the time to do this now will answer many questions you may have in the future.
Possibly the following will help. Understanding Smoke Management - updated 12/08/14, AMNPS & Smoke Daddy Myths?