I have P-IV with one serial port(on board),I want to attach one PCI IO card having 2 serial port & 1 Parallel port.I had altered sysinit.1 file consequently in Dev directory ser2,ser3 are showing but unable to communicate with ser2 & ser3 port.Is there any need to change in some other file.
Can you post the output of show_pci and the command line you used? IF the board is compatible with standard serial port register then what you are doing should work. So either it’s not 100% compatible or you are doing something wrong. Can you specify what model of serial port it is.