Luis Castillo gives White Sox just what they want in first home start

That was the Luis Castillo the White Sox were hoping for. Castillo, the 10-year veteran acquired from the Mariners two days before the trade deadline, pitched seven scoreless innings Wednesday against the Reds, allowing one hit and two walks in his first home start at Rate Field. He set a season high with 10 strikeouts. Manager Will Venable is looking for length from Castillo to help a rotation that largely has been short on it. He got that and more as Castillo rebounded from his Sox debut, in…