Does the lates mysql support parameter binding in IN parameters

[Maikoly]

query = new QSqlQuery();
query->prepare("Call log(:usernam,:pass)");
query->isSelect();
//query->prepare("SELECT * FROM pumaro.users WHERE (userID = :usernam AND password1 = :pass)");
query->bindValue(":usernam",QVariant(user),QSql::In);
query->bindValue(":pass",QVariant(pass),QSql::In);
query->exec();

the commented section works fine. but the Call procedure(); returns Size -1. Whats wrong with the code.. Am I doing it Wrong. Any Assistance and advise shall be appreciated.