The Marlins selected Driscoll's contract from Triple-A Jacksonville on Friday, Kevin Barral of FishonFirst.com reports.
Driscoll was acquired from the Rays in exchange for cash earlier this week, and he's now joining the big-league roster. The Marlins are already carrying three catchers on their active roster, so the corresponding roster move will likely involve another backstop. Driscoll has slashed .250/.343/.368 with three home runs in 43 games with Triple-A Durham this season.