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Date:      Thu, 02 Feb 2012 14:52:46 +0000
From:      Chris Whitehouse <cwhiteh@onetel.com>
To:        User Questions <freebsd-questions@freebsd.org>
Subject:   ath and how to control wireless light
Message-ID:  <4F2AA33E.6010207@onetel.com>

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Hello

I have FreeBSD 9R amd64 installed on a HP G60 laptop. This machine has a 
combined wireless switch and led. The switch turns the wifi on and off 
but the light stays red.

The light is supposed to show red for wireless off and blue for wireless 
on. I found some sysctls that control it:
dev.ath.0.softled: 0
dev.ath.0.ledpin: 3
dev.ath.0.ledon: 1
dev.ath.0.ledidle: 2700

softled, ledpin and ledon are all set to 0 on boot.
I set ledpin to 3, then to change the colour of the light I turn on 
softled 0->1, toggle ledon and turn off softled again.

Can I make that sequence occur, or do something else, to make the led 
change when the button is pressed _and_ keep in sync with whether the 
wireless is on or off?

With softled=1 the light is blue with a short red flash or red with a 
short blue flash depending on the value of ledon. Also when softled=1 
the light flashes in it's "opposite" colour when there is network 
traffic. So it would probably be ok just to leave softled=1 and toggle 
ledon.

The wireless device is
dev.ath.0.%desc: Atheros 5424/2424.

I think there is a slight glitch with the on/off button, that under some 
circumstances it doesn't turn the wifi on again, which would be much 
easier to test if the light worked.

Also what is ledidle and what do different settings do?

Thanks

Chris



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