taglinefilesource code
save_MCR2049drivers/char/serial.cunsigned char save_MCR, save_IER, save_ICP=0;
save_MCR2059drivers/char/serial.csave_MCR = serial_inp(info, UART_MCR);
save_MCR2091drivers/char/serial.cserial_outp(info, UART_MCR, save_MCR);