Symbol: ASY_ISR_FIFO64
usr/src/uts/common/io/asy.c
1928
switch (isr & (ASY_ISR_FIFOEN | ASY_ISR_FIFO64)) {
usr/src/uts/common/io/asy.c
1941
case ASY_ISR_FIFOEN | ASY_ISR_FIFO64: /* 16750 with 64byte FIFOs */