Configuring Linux For Using Lava Serial Cards The following was done using Redhat Linux 6.2 - setserial that comes with the package is version 2.15 - download latest version of setserial - copy the rc.serial that came in the archive into the /etc/ directory (read the readme that comes in the archive) - by default there are 4 serials ie. /dev/ttyS(x) - setserial -g /dev/ttyS* shows what devices are are existing - to add additional ports use the following commands - mknod -m 666 /dev/ttyS(x) c 4 64 (where x is the port number) - cd /dev - ./MAKEDEV ttyS(x) - if you have an ISA card, use setserial /dev/ttyS(x) port 0x(address) irq (y) uart 16650V2 or 16550A (where y is the interrupt you jumpered the card for, address is the I/O you set the jumper for and 16550A and 16650V2 is the type of uart on the serial card) - examples for ISA: setserial /dev/ttyS2 port 0x02f8 irq 10 uart 16650V2 for Com 3 setserial /dev/ttyS3 port 0x02f8 irq 11 uart 16550A for Com 4 * the above example was for a DSerial 550 - if you have a PCI serial card the lspci -v will report what resources the serial card is using - use the same 'setserial /dev/ttyS(x) port 0x(address) irq (y) uart 16650V2 or 16550A' command to configure the serial device - examples for PCI: setserial /dev/ttyS4 port 0x6100 irq 12 uart 16650V2 for Com 5 setserial /dev/ttyS5 port 0x6200 irq 12 uart 16650V2 for Com 6 * the above example was for a Lava Port PCI - the serial ports' configurations can be found in /etc/serial.conf