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Message-ID: <4EA83160.4080405@lwfinger.net> (sfid-20111026_181205_739146_AA0AC6F7)
Date: Wed, 26 Oct 2011 11:12:16 -0500
From: Larry Finger <Larry.Finger@lwfinger.net>
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To: Chiefdome <chiefdome@googlemail.com>
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Subject: Re: Alfa AWUS036NHR with RTL8188RU chipset
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On 10/26/2011 10:49 AM, Chiefdome wrote:
> Is there a way to set the tx-power over 20dbm on the adapter?
> I thought it is able to do 2w. There is no way for me to get it over 20 dbm.
> When trying to to set the adapter with "iwconfig wlan1 set txpower 30" it answers
>
> Error for wireless request "Set Tx Power" (8B26) :
> SET failed on device wlan1 ; Invalid argument.
>
> I think there has to be done some work in the code but where do I start?
>
> Thanks for all replys.

The WEXT interface is deprecated. It is there as a convenience, but it will not 
be extended. To change the power setting, you need to use the iw utility. The 
specific commands are:

iw dev <devname> set txpower <auto|fixed|limit> [<tx power in mBm>]

or

iw phy <phyname> set txpower <auto|fixed|limit> [<tx power in mBm>]

The maximum power will be dependent on your regulatory domain setting.

Larry