tag	line	file	source code
UART_MSR	283	kernel/chr_drv/serial.c	status = serial_in(info, UART_MSR);
UART_MSR	532	kernel/chr_drv/serial.c	(void)serial_inp(info, UART_MSR);
UART_MSR	571	kernel/chr_drv/serial.c	(void)serial_inp(info, UART_MSR);
UART_MSR	914	kernel/chr_drv/serial.c	status = serial_in(info, UART_MSR);
UART_MSR	1179	kernel/chr_drv/serial.c	(serial_in(info, UART_MSR) & UART_MSR_DCD)))
UART_MSR	1347	kernel/chr_drv/serial.c	(void)serial_inp(info, UART_MSR);
UART_MSR	1407	kernel/chr_drv/serial.c	scratch2 = serial_inp(info, UART_MSR);
UART_MSR	1409	kernel/chr_drv/serial.c	status1 = serial_inp(info, UART_MSR) & 0xF0;
UART_MSR	1411	kernel/chr_drv/serial.c	serial_outp(info, UART_MSR, scratch2);