Symbol: com_mcr
usr/src/boot/efi/libefi/efiisaio.c
1161
sp->ioaddr + com_mcr, 1, &data);
usr/src/boot/i386/libi386/comconsole.c
535
outb(sp->ioaddr + com_mcr,
usr/src/boot/include/dev/ic/ns16550.h
96
#define REG_MCR com_mcr