Date: Tue, 29 Jul 2008 14:22:20 -0600 (MDT) From: "M. Warner Losh" <imp@bsdimp.com> To: ikram@wideband.com.pk Cc: freebsd-drivers@FreeBSD.org Subject: Re: Incorrect Atheros txpower output Message-ID: <20080729.142220.-749250939.imp@bsdimp.com> In-Reply-To: <6fe7c62a0807291226x15ef59bcn334c97562f3399b8@mail.gmail.com>
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In message: <6fe7c62a0807291226x15ef59bcn334c97562f3399b8@mail.gmail.com>
"Mohammad Ikram" <ikram@wideband.com.pk> writes:
: Hi !
:
: I am using FreeBSD 7.0 and recently installed a Engines EPI-3601S card. The
: card has an Atheros chip with a 27dBm output power rating. I am using it as
: hostap. FreeBSD detects it fine, but the trouble is FreeBSD does not takes
: the power level up. The max i was able to set is was 16dBm. (ifconfig ath0
: txpower xx). I tried it on linux with madwifi but same results, so i started
: having a few doubts with this card, a friend of mine suggested that i should
: try the router OS (www.mikrotik.com) i did, and it worked perfectly.
:
: can any one tell me why can't i change the power level ? (i did changed
: country codes, to no avail) i read some where it is the problem with the
: driver ? so is there any patch ?
Did you measure the output power directly? Many cards have a final
stage amplifier that kicks things up a few dB... Maybe router OS
knows about this card's quirks and copes...
Warner
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