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Date:      Thu, 20 Jan 2011 08:40:22 +0000 (UTC)
From:      Adrian Chadd <adrian@FreeBSD.org>
To:        cvs-src-old@freebsd.org
Subject:   cvs commit: src/sys/dev/ath/ath_hal/ar5416 ar5416_cal.c
Message-ID:  <201101200840.p0K8ecDI019729@repoman.freebsd.org>

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adrian      2011-01-20 08:40:22 UTC

  FreeBSD src repository

  Modified files:
    sys/dev/ath/ath_hal/ar5416 ar5416_cal.c 
  Log:
  SVN rev 217629 on 2011-01-20 08:40:22Z by adrian
  
  Add a comment from my local HAL about what is actually going on here
  with these ADC DC Gain/Offset calibrations.
  
  The whole idea is to calibrate a pair of ADCs to compensate for any
  differences between them.
  
  The AR5416 returns lots of garbage, so there's no need to do the
  calibration there.
  
  The AR9160 returns 0 for secondary ADCs when calibrating 2.4ghz 20mhz
  modes. It returns valid data for the secondary ADCs when calibrating
  2.4ghz HT/40 and any 5ghz mode.
  
  Revision  Changes    Path
  1.15      +17 -0     src/sys/dev/ath/ath_hal/ar5416/ar5416_cal.c



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