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© National Instruments Corporation 3 Using PCI Serial with Linux
a. General Setup
– PCI Support
–PCI Quirks
– Backward-compatible
/proc/pci
b. Character Devices
– Standard/generic dumb serial support
– Extended dumb serial driver options
– Support more than four serial ports
– Support for sharing serial interrupts
•
setserial 2.14 or later. To find the version of
setserial
,
enter the
following:
linux# setserial –V
• PCI Utilities 1.10 or later. You can download PCI Utilities 1.10 from
ftp://metalab.unc.edu/pub/Linux/hardware
• PCI-SERIAL.tar.gz. You can download this file from the National
Instruments FTP site at
ftp://ftp.natinst.com/support/
ind_comm/serial/linux/
After you have the file, extract and unzip it by entering the following:
linux# tar zxvf PCI-SERIAL.tar.gz
The tar command extracts and unzips PCI-SERIAL.tar.gz and
creates the sub-directory
PCI-SERIAL. Enter the following to make
sure all necessary files are included:
linux# cd PCI-SERIAL
linux PCI-SERIAL# ls
FIFOtrigger intenable serialtest
FIFOtrigger_pci.c interrupt_enable.c serialtest.c
Clock_speed.c rs485 termios_program.c
clockspeed rs485.c
• Configure your BIOS to include a Plug and Play aware OS.
• You need superuser privileges to do most of the steps and program
segments in this document.