> On Feb 5, 2016, at 6:11 AM, David Gabriel <davidgab283 at gmail.com> wrote: > > Dears > > I am writing a controller application and I want to set the metadata filed. But I am wondering which value shall I set the metadata_mask ? If you need to set a mask (depending on the interface you may not), it should be all ones for the width of the field. --Justin