RocketPort Jet Linux® Driver Configuration
Document Number: 2000456 Rev B.



Use the RocketPort Jet Hardware and Software Installation Quick Start for the 
following information:
•   How to set pin assignments and jumpers
•   RocketPort Jet features and specifications

--------------------------
Verifying the Installation
--------------------------
For Linux Kernel 2.4.18 and above (including RedHat V8.0), the RocketPort Jet
serial ports can be automatically detected and installed. The following shows 
the necessary steps to verify that the RocketPort Jet serial ports have been 
configured correctly by the Linux platform.

1.  Power down the system.

2.  Make sure that you have made any jumper changes using the RocketPort Jet 
    Hardware and Software Installation Quick Start.

3.  Insert the RocketPort Jet into an available PCI slot and start the system.

4.  After bootup, log in as supervisor or use su as shown below:

      [test@lnx test]$ su
      Password:

5.  Check the PCI device status. The following illustrates a RocketPort Jet 4-port 
    installation.

      [root@lnx test]# lspci-v
      ...
      00:0d.O Serial controller: Oxford Semiconductor Ltd OX16PCI954 
      (Quad 16950 UART function 0 (prog-if 06 [16950])
      Subsystem: Oxford Semiconductor Ltd: Unknown device 000
      Flags: medium devsel, IRQ 9
      I/O ports at c400 [size=32]
      Memory at dfffc000 (32-bit, non-prefetchable) [size=4K]
      I/O ports at c000 [size=32]
      Memory at dfffb000 (32-bit, non-prefetchable) [size=4K]
      Capabilities: [40] Power Management version 2
      If output of the lspci -v shows something similar to above system 
      response, the RocketPort Jet card has been correctly detected by the system.

6.  Set the port for the correct clock speed by configuring the baud_base.

    Example:

      setserial /dev/ttyS4 baud_base 921600
      setserial /dev/ttyS5 baud_base 921600

7.  To set the baud base when the system boots, place the setserial baud_base 
    command in the following files where applicable:

    •  Ubuntu and Debian derivatives /etc/rc.local
    •  Redhat and derivatives /etc/rc.local
    •  SuSe /etc/init.d/boot.local
    •  Gentoo /etc/conf.d/local.start

8.  Verify the available serial ports that reside in the system:

      [root@lnx test]# more /proc/tty/driver/serial
      serinfo:1.0 driver revision:
      0: uart:16550A port:000003F8 irq:4 tx:0 rx:0
      1: uart:16550A port:000002F8 irq:3 tx:0 rx:0
      2: uart:16450 port:0000CC00 irq:9 tx:0 rx:0
      3: uart:16450 port:0000CC08 irq:9 tx:0 rx:0
      4: uart:16C950/954 port:0000C400 irq:9 tx:0 rx:0
      5: uart:16C950/954 port:0000C408 irq:9 tx:0 rx:0
      6: uart:16C950/954 port:0000C410 irq:9 tx:0 rx:0
      7: uart:16C950/954 port:0000C418 irq:9 tx:0 rx:0
      [root@lnx test]#

   The serial ports from the RocketPort Jet are now listed as UART 4-7 and are 
   assigned as ttyS4 through ttyS7. The number may vary depending upon how many 
   serial ports you have installed.

-----------------
Technical Support
-----------------
If you need technical support, contact Comtrol using one of the following methods.

Web site         http://www.comtrol.com
Downloads        http://support.comtrol.com/download.asp
Customer Support http://www.comtrol.com/support/
Phone            763.494.4100


----------
Trademarks
----------
Comtrol and RocketPort are trademarks of Comtrol Corporation. 
Linux is a registered trademark of Linus Torvalds. 
Other product names mentioned herein may be trademarks and/or registered trademarks 
of their respective owners.

Second Edition, December 4, 2007
Copyright ©2006 - 2007. Comtrol Corporation. 
All Rights Reserved.
Comtrol Corporation makes no representations or warranties with regard to the 
contents of this document or to the suitability of the Comtrol product for any 
particular purpose. Specifications subject to change without notice. Some software 
or features may not be available at the time of publication. Contact your reseller 
for current product information.