[ltp] Disabling the wireless

[Brian D. Ropers-Huilman]

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Frank Schaeckermann said the following on 2004-12-15 05:45:
| Alejandro Sobrino Beltr=E1n alex.sobrino-at-gmail.com |Linux on ThinkPads|
| wrote:
|>
|> He only looks if the modules are already loaded. If so, then they are
|> unloaded. But there is nothing about turning off the hardware.
|>
|> Maybe I'm wrong :?
|
|
| No you are absolutely right! But when I remove these modules, my
| wireless light goes off and I (maybe wrongly) assume, that the
| shutdown-code of the driver takes care of switching the power to the
| hardware off. At least I have recognized a considerable difference in
| battery life between having the modules loaded and having them stopped.
|

This is my experience as well. Removing the modules saves considerable
battery power, roughly an hour or more in my case. With a 9 cell Li-ion,
CPU speed set at 600 MHz, and my display brightness at it's lowest
setting, I get about 3.5-4 hours of life while using wireless. If I
remove the modules, I get a solid 5 hours, sometimes more.

- --
Brian D. Ropers-Huilman  .:. Asst. Director .:.  HPC and Computation
Center for Computation & Technology (CCT)        bropers@cct.lsu.edu
Johnston Hall, Rm. 350                           +1 225.578.3272 (V)
Louisiana State University                       +1 225.578.5362 (F)
Baton Rouge, LA 70803-1900  USA              http://www.cct.lsu.edu/
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