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in any standard Linux distribution.
This utility was present in the Linux distribution installed on our desktop. However that
was not the case on the PCM-5896. So we had to ftp the executables to the SBC ( the
only way to transfer files to it), add some necessary libraries and use it in the command
line mode.
Just typing:
aumix
tried to open the curses version of the program which could not display from our Single
Board’s terminal.
In this case we had to specify all the options on the command line itself.
Our choice of this mixer utility was obvious. It was available as a standard component of
the distribution and it was not kernel specific. More importantly it was extremely portable
onto our single board computer and with the addition of a few libraries worked perfectly
in the command mode.
4.2.3.2 IWCONFIG
This was a utility written by Jean Tourrilhes to manipulate the wireless extensions of the
PCMCIA Wavelan card. It could be used to set different parameters such as ESSID
(NETWORK_NAME), CHANNEL, ENCRYPTION etc. as part of the wireless_tools
package. We were able to use the version 19 of this package on our desktop running the
2.2.12 kernel. The package actually contained the pre-compiled executable. However our
Single Board Computer was running kernel version 2.2.14. The wireless_tools
corresponding to this kernel was version 20 (wireless_tools.20.tar.gz). We were not
successful in getting this to compile and so was not able to ftp the executable onto the
Board. So I was forced to circumvent the use of this utility by calling modprobe in order
to load up the wavelan module with the appropriate extensions.
In this case it was:
modprobe wvlan_cs NETWORK_NAME=MyNet CHANNEL=3 PORT_TYPE=3
4.3 NETWORK INTERFACE
There were two methods we used to get to the network. One was wired Ethernet using a
PCI Ethernet card EEPRO100. The other method was using the Lucent Wavelan IEEE
silver PCMCIA card. We did not have any alternatives as these were the only hardware
we had
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