Tx power setting

Okhwan Lee ohlee at mwnl.snu.ac.kr
Thu Nov 6 16:49:11 PST 2014

Hi all, 

Thank you for the answer. 
As you said, if we use the most recent version of ath10k, it works correctly. 

Okhwan Lee
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켜짐 2014년 11월 5일 에서 오후 10:54:55, Michal Kazior (michal.kazior at tieto.com(mailto:michal.kazior at tieto.com)) 작성됨:

> On 5 November 2014 09:41, Okhwan Lee wrote:
> > Hi,
> >
> > We are trying to change the tx power of QCA 9880.
> > We use 3.16.1 linux kernel and backport (3.16.1) to use the emerging ath10k device driver and 10.1.467.2-1 firmware.
> >
> > However, we can not change the tx power setting (default 0 dBm) by using iw or iwconfig commands.
> What do you mean "can not change". Do you get an error message? Where
> does it say you have 0 dBm as the default?
> > Based on my understanding, if we change the tx power using the commands, ath10k_config() function should be invoked.
> > However, the function is not called.
> > And the received signal strength at the receiver side does not change.
> >
> > If you have any idea, please let me know.
> I'm using fbb5c042800ec42459a5cc307dec566d8e316927 from
> github.com/kvalo/ath/ (based on 3.17). I don't see the problem you
> describe - I can change tx powed with, e.g. `iw wlan1 set txpower
> fixed 1000`. The other end reports different signal strength values
> when I change txpower. Can you re-test with latest ath10k code,
> please?
> Michał

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