tag	line	file	source code
UART_MCR_OUT1	992	drivers/char/serial.c	info->MCR_noint = UART_MCR_DTR | UART_MCR_OUT1;
UART_MCR_OUT1	998	drivers/char/serial.c	info->MCR |= UART_MCR_OUT1 | UART_MCR_OUT2;
UART_MCR_OUT1	999	drivers/char/serial.c	info->MCR_noint |= UART_MCR_OUT1 | UART_MCR_OUT2;