User Manual

Chapter 3. Using the System
3.3.2. Compact Flash GPS Card
The operating system automatically identifies the Compact Flash GPS card when it is inserted.
At that time, the device file /dev/ttyS0 is created and the GPS card can be accessed by using
that device with the serial port settings the GPS card uses.
The supported Compact Flash cards are listed in Appendix D.
3.3.3. Compact Flash Wi-Fi Cards
Access Server supports Prism II/III based CF Wi-Fi cards. The supported Compact Flash cards
are listed in Appendix D.
By default, Access Server notices when a supported Wi-Fi card is inserted and tries to use it in
the client mode, without encryption. So, if there is an open Wi-Fi Access Point in range, Access
Server will automatically connect to it.
To configure Wi-Fi to the Access Point mode, or to change other Wi-Fi settings, use the setup
application or its WWW interface at Setup −→ Network settings −→ Wi-Fi.
Note: Older Compact Flash cards with firmware version 1.4.2 do not work in the Access Point mode.
Instead, you will see an error message in the system log (/var/log/messages, viewable at Setup −→
Advanced −→ System Information −→ Show system log file).
A standard set of command line wireless utilities is provided to fine-tune your Wi-Fi configura-
tion:
• iwconfig
• iwlist
• iwpriv
For more information on these utilities, see: http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html
3.4. USB Memory Dongles and Compact Flash Memory Cards
Access Server’s persistent memory storage can be extended by using an USB memory dongle or
a Compact Flash memory card. These are also used by the Access Server Remote Management
System (see
Section 3.5.5) - each time a dongle or memory card is inserted, it is automatically
mounted, and scanned for management packets, which are processed and unmounted.
To use the USB dongle or Compact Flash memory card for your own applications, the memory
must be mounted manually by using command:
[root@wrap /]$ mount -t vfat device /mnt/usb
The device parameter is a path to the USB dongle or Compact Flash memory card filesystem
device. For the first dongle inserted after a reboot, it is /dev/sda1 if the dongle is partitioned
(which often is the case) and /dev/sda if the dongle has no partition table. The first Compact
Flash memory card is typically at /dev/hda1, correspondingly. If you have used several dongles
after reboot, new device file names are created: /dev/sdb1 for the second one, /dev/sdc1 for
the third one, and so on. In the case of memory cards, naming is similar, that is, the second one
gets device file name /dev/hdb1.
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