tag	line	file	source code
UART_SCR	2526	drivers/char/serial.c	scratch = serial_in(info, UART_SCR);
UART_SCR	2527	drivers/char/serial.c	serial_outp(info, UART_SCR, 0xa5);
UART_SCR	2528	drivers/char/serial.c	status1 = serial_in(info, UART_SCR);
UART_SCR	2529	drivers/char/serial.c	serial_outp(info, UART_SCR, 0x5a);
UART_SCR	2530	drivers/char/serial.c	status2 = serial_in(info, UART_SCR);
UART_SCR	2531	drivers/char/serial.c	serial_outp(info, UART_SCR, scratch);