I\'ve got the latest Mysql connector that allows you to use the Visual Studio Entity Framework designer. It\'s been working great, but I just added a stored proc.
Check out this bug entry:
http://bugs.mysql.com/bug.php?id=44985
Sorry about your luck. Welcome to the club. Apparently having proper support for stored procedures in MySQL from the MySQL Connector/.NET Entity Framework is not available. As you can see from the dates in the thread there has been an incredibly slow response to introduce the feature.