ALVIUM_BIT_BAY_MONO
alvium->is_bay_avail[ALVIUM_BIT_BAY_MONO] = avail_bay->mono;
.bay_av_bit = ALVIUM_BIT_BAY_MONO,
.bay_av_bit = ALVIUM_BIT_BAY_MONO,
.bay_av_bit = ALVIUM_BIT_BAY_MONO,
alvium->is_bay_avail[ALVIUM_BIT_BAY_MONO]);