Hi, all, I am porting serial console driver from kenel 2.2.12 to kernel 2.4.3. I can use printk and prom_printf to print messages on serial terminal. But when the kernel call autoconfig() function, the output on serial terminal is stop. I check the autoconfig() function, it stop at serial_outp(info, UART_LCR, 0xBF); /* set up for StarTech test */ Why? If someone knows, please help me. Thanks! Barry __________________________________________________ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/