From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.gmx.net ([213.165.64.20]:47774 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751601AbZCRTFK (ORCPT ); Wed, 18 Mar 2009 15:05:10 -0400 Message-ID: <49C145E2.9050205@gmx.de> Date: Wed, 18 Mar 2009 20:05:06 +0100 From: wk MIME-Version: 1.0 To: Devin Heitmueller CC: Linux Media Mailing List Subject: Re: SNR status for demods References: <412bdbff0903171945m680218d9xa39982efb1a17728@mail.gmail.com> In-Reply-To: <412bdbff0903171945m680218d9xa39982efb1a17728@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: > I have updated my compiled list of the various demods and how they > currently report SNR info (including feedback from people in the last > round). > > http://www.devinheitmueller.com/snr.txt > > What about signal strength and BER readout in parallel for each device listed here? Needs the same docs and would not add too much work.. ---- tda10021: MSE[7..0] (= reg 0x18 ) "Mean Square Error of the demodulated output signal. MSE can be used as a representation of the signal quality." u8 quality = ~tda10021_readreg(state, 0x18); *snr = (quality << 8) | quality; ves1820: the same. tda10023: seems to be the same. (no info, but chip is very close to tda10021)