tag	line	file	source code
TIMER	51	kernel/chr_drv/serial.c	#define TIMER ((SER1_TIMEOUT-1)+line)
TIMER	60	kernel/chr_drv/serial.c	#undef TIMER
TIMER	149	kernel/chr_drv/serial.c	#define TIMER ((SER1_TIMEOUT-1)+line)
TIMER	162	kernel/chr_drv/serial.c	#undef TIMER