GPIB_READ
dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE);
sc->sc_resid, dir, dir == GPIB_READ);
dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE);
dir == GPIB_READ ? MTT_READ : MTL_WRITE,
bp->b_data, bp->b_bcount, dir, dir == GPIB_READ);
dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE);
sc->sc_resid, dir, dir == GPIB_READ);
if (dir == GPIB_READ)