use existing sql table for user-password

[Oguzhan Kayhan]

Hello,
I want to use freeradius for wireless authentication.
I got an already installed mysql server, and some tables including usernames 
and passwords.
I want to use this user/passwords with freeradius.
How can it be possible?
I will create a radius table to keep logs etc, but just to use user/passwd 
field..can i use another table?