The Wolves frontman has been heavily linked with a move to the Keepmoat Stadium as a strike partner for Billy Sharp.
O'Driscoll told the club's official website. "His situation, so I am told, is that he may be surplus to requirement at Wolves - I'm not sure. You can never tell with clubs. They get problems and all of a sudden he is playing a number of games last season.
"He is part of their squad, but we have made 'tentative enquiries' or we speak to clubs all the time and his name was mentioned when we chatted to (Wolves boss) Mick McCarthy to see what the situation was. That's what has happened and that is the fact."
On Tottenham defender Stephen Caulker, who has also been linked with a move to the club, O'Driscoll
added: "He's somebody that we have tracked for quite a long time. We've been in contact with Tottenham to see what the situation was. That's not a rumour; that is fact."