Does a defendant have a right to conduct their own defense?

" 'A criminal defendant has a right, under the Sixth Amendment to the federal Constitution, to conduct his own defense, provided that he knowingly and intelligently waives his Sixth Amendment right to the assistance of counsel. [Citations.] A defendant seeking to represent himself "should be made aware of the dangers and disadvantages of self-representation, so that the record will establish that 'he knows what he is doing and his choice is made with eyes open.' [Citation.]" [Citation.]' " (People v. Burgener (2009) 46 Cal.4th 231, 240-241.)