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Wln Object |
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The wln object represents the Wi-Fi interface of your device. It is through this object that you find available Wi-Fi networks and select the one to associate with. You can also create an ad-hoc network of your own and have other stations connect to it.
The wln object is not responsible for actual data communications over the Wi-Fi -- this is the job of the sock object. In the task it performs, the wln object is similar to the net object, which controls another interface -- the Ethernet. In comparison, the wln object is more complex.
The wln object allows you to:
| • | Scan for available networks and obtain their parameters such as name, channel, mode, etc. |
| • | Set WEP security mode and key. |
| • | Associate with one of the networks (at a time) or form your own "ad-hoc" network on a desired channel. |
| • | Monitor received signal strength. |
| • | Detect disassociation from the network. |
| • | Detect Wi-Fi interface power-down or malfunction. |
The present incarnation of the wln object is intended to work with Tibbo's GA1000 802.11b/g add-on board. Previous version of the .wln object worked with the now obsolete WA1000 add-on board. This transition has caused certain changes in how the wln object works. These changes are detailed in Migrating From the WA1000 topic.