Global txpower in ath

[Deker]

Whoops, I replied to the first message wrong, so I'll bring it back  
to the list...

I don't have access at the moment to a FreeBSD box to point to  
specifics, but I'd recommend looking at ifconfig sources (/usr/src/ 
sbin/ifconfig/ifieee80211.c?) to see which ioctl is being called for  
the txpower argument. Then, follow that down into /usr/src/sys/ 
net80211/ieee80211_ioctl.c and see what's happening from the net80211  
layer to the driver.

-d


On Aug 10, 2005, at 2:50 PM, Sam Pierson wrote:

> I'm not sure, exactly.  What happened was, I brought a laptop
> far away and then sent some UDP packets to it from an ath
> card.  It receives all of them correctly.  When I turn the global
> power down (ifconfig ath0 txpower 1), it cannot receive the
> packets.  There is a little variation, when I set it to 9, only
> some of the packets are received, and when I set it to 19
> or greater, most of the packets are received.
>
> -Sam
>
> On 8/10/05, Deker <deker at slackdot.org> wrote:
>
>>
>> I wasn't aware that the HAL supported variable TX power yet. Has
>> there been some update to allow the txpower argument to
>> ath_hal_tx_start to be honored?
>>
>> -d
>>
>> On Aug 10, 2005, at 1:53 PM, Sam Pierson wrote:
>>
>>
>>> I noticed that when I control the signal strength through
>>> ifconfig, I can effectively reduce the signal when I set it
>>> as something like:  ifconfig ath0 txpower 1.  I have read
>>> that this input is device driver dependent and I couldn't
>>> find anything in the interface that handles txcontrol.  Are
>>> these values taken in exactly or are they rounded to some
>>> less fine-grained control number?  Thanks,
>>>
>>> Sam
>>> _______________________________________________
>>> freebsd-hackers at freebsd.org mailing list
>>> http://lists.freebsd.org/mailman/listinfo/freebsd-hackers
>>> To unsubscribe, send any mail to "freebsd-hackers-
>>> unsubscribe at freebsd.org"
>>>
>>>
>>
>>
>