> +/// A special `MemTxAttrs` constant, used to indicate that no memary typo... s/memary/memory/
> +/// attributes are specified. > +/// > +/// Bus masters which don't specify any attributes will get this, > +/// which has all attribute bits clear except the topmost one > +/// (so that we can distinguish "all attributes deliberately clear" > +/// from "didn't specify" if necessary). > +pub const MEMTXATTRS_UNSPECIFIED: MemTxAttrs = MemTxAttrs { > + unspecified: true, > + ..Zeroable::ZERO > +};