Date: Thu, 11 Aug 2005 17:14:30 -0500 From: Sam Pierson <samuel.pierson@gmail.com> To: Sam Leffler <sam@errno.com>, FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: Global txpower in ath Message-ID: <d9204e4c05081115143f79e540@mail.gmail.com> In-Reply-To: <42FACAF6.4020805@errno.com> References: <d9204e4c05081010537d65972@mail.gmail.com> <42FACAF6.4020805@errno.com>
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Is there a way to check the txpow in sysctl or something along those lines? I'm changing txpower and it appears as though it will do a reset every once in awhile. From=20 what I can gather from if_ath.c, it looks like ath_init resets the txpow as well. I'd like to know whether or not my originally intended txpow is still being respected. -Sam On 8/10/05, Sam Leffler <sam@errno.com> wrote: > 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, >=20 > The current support has a limited number of settings for the tx power. > I don't recall how many there are but it's chip dependent and possibly > also frequency-specific. 5212 parts are capable of controlling txpower > on a per-packet basis but getting it "right" has proven very hard and is > not yet supported. >=20 > Sam >
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