which must consist of the Unit number of your card reader followed by the LUN number of the slot you want to use. In your case it should be 10 for Unit 1 and the first slot (LUN 0) for example.
No, it's the other way round. Unit 12 means ID 2, LUN 1. So to get LUN 0 of ID 1, it's unit 1. Unit 10 would be LUN 1 of ID 0.
