taglinefilesource code
x_char408drivers/char/serial.cif (info->x_char) {
x_char409drivers/char/serial.cserial_outp(info, UART_TX, info->x_char);
x_char410drivers/char/serial.cinfo->x_char = 0;
x_char1346drivers/char/serial.cinfo->x_char = STOP_CHAR(tty);
x_char1369drivers/char/serial.cif (info->x_char)
x_char1370drivers/char/serial.cinfo->x_char = 0;
x_char1372drivers/char/serial.cinfo->x_char = START_CHAR(tty);
x_char2346drivers/char/serial.cinfo->x_char = 0;
x_char96include/linux/serial.hint      x_char;  /* xon/xoff characater */