The two clubs are currently locked in discussions over the 24-year-old's valuation, but Hosiner insists that he is not considering offers from elsewhere.
"No player or manager from a club in Austria can turn down a serious approach from a club from Germany. That is a fact," he told Osterreich.
"Hoffenheim 1899 has been very busy convincing me and I really had a great feeling right from the start.
"I want to join the club, an other club is not an issue for me at this point in time."
The Austrian side are also in discussions with Hoffenheim over midfielder Sandro Wieser, who is on the brink of moving in the opposite direction on a season-long loan.