ESS_XCMD_DEMAND_CTRL 1348 dev/isa/ess.c  	ess_set_xreg_bits(sc, ESS_XCMD_DEMAND_CTRL, ESS_DEMAND_CTRL_DEMAND_4);
ESS_XCMD_DEMAND_CTRL 1495 dev/isa/ess.c  	ess_set_xreg_bits(sc, ESS_XCMD_DEMAND_CTRL, ESS_DEMAND_CTRL_DEMAND_4);