From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:44737 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750738Ab1CFNEj (ORCPT ); Sun, 6 Mar 2011 08:04:39 -0500 Message-ID: <4D738664.1020200@iki.fi> Date: Sun, 06 Mar 2011 15:04:36 +0200 From: Antti Palosaari MIME-Version: 1.0 To: adq CC: =?ISO-8859-1?Q?Juan_Jes=FAs_Garc=EDa_de_Soria_Lucena?= , linux-media@vger.kernel.org Subject: Re: [patch] Fix AF9015 Dual tuner i2c write failures References: <4D7163FD.9030604@iki.fi> <4D716ECA.4060900@iki.fi> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit List-ID: Sender: On 03/06/2011 02:24 PM, adq wrote: > Another issue I've noticed just now: The UCBLOCKS measure isn't reset: > it seems to be an accumulative counter, which isn't correct from the > DVB API (if I remember correctly). > > This explains why tvheadend's "quallity" measure gradually tends to 0, > since it is assuming UCBLOCKS is non-accumulative. 2.2.7 FE READ UNCORRECTED BLOCKS DESCRIPTION This ioctl call returns the number of uncorrected blocks detected by the device driver during its lifetime. For meaningful measurements, the incrementin block count during a specific time interval should be calculated. For this command, read-only access to the device is sufficient. Note that the counter will wrap to zero after its maximum count has been reached. Antti -- http://palosaari.fi/