IER2             2060 drivers/tty/synclinkmp.c 	write_reg(info, IER2, 0);
IER2             5089 drivers/tty/synclinkmp.c 	write_reg(info, IER2, (unsigned char)((info->port_num & 1) ? BIT6 : BIT4));
IER2             5149 drivers/tty/synclinkmp.c 	write_reg(info, IER2, 0xf0);	/* TIRQ (timers 0-3) */