To install your PCI serial interface product in QNX 6 Neutrino, the two files located in the current directory need to be placed into specified locations in order for the cards to be recognized. WARNING: If you do not place these files into the proper locations before installing the serial card, the system will hang on boot. PCISERIAL needs to be put into /etc/system/enum/devices 8PTPCISER needs to be put into /sbin After copying the files, it is important that you change the permissions on 8PTPCISER. It needs to be 775 (rwxrwxr-x). You can use "chmod" to do this.