ESO_MIXREG_A2C2_SIGNED 1684 dev/pci/eso.c  		sc->sc_a2c2 |= ESO_MIXREG_A2C2_SIGNED;
ESO_MIXREG_A2C2_SIGNED 1686 dev/pci/eso.c  		sc->sc_a2c2 &= ~ESO_MIXREG_A2C2_SIGNED;