tt_microwire
tt_microwire.mask = 0x7ff;
tt_microwire.data = MW_LM1992_ADDR | cmd;
while( tt_microwire.mask != 0x7ff)
if (!MACH_IS_MEDUSA && hwreg_present(&tt_microwire.data) &&
hwreg_present(&tt_microwire.mask) &&
(tt_microwire.mask = 0x7ff,
tt_microwire.data = MW_LM1992_PSG_HIGH | MW_LM1992_ADDR,
tt_microwire.data != 0)) {
while (tt_microwire.mask != 0x7ff)