From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001225]: RMS hardware input and software plaback levels are incorrectly reported under 64 bit linux Date: Sat, 2 Jul 2005 08:42:46 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 3B8CE187 for ; Sat, 2 Jul 2005 08:42:47 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: ckg Assigned To: charbonnel ====================================================================== Project: ALSA - driver Issue ID: 1225 Category: PCI - RME HDSP Reproducibility: always Severity: major Priority: normal Status: assigned Distribution: Kernel Version: 2.6.11 ====================================================================== Date Submitted: 07-01-2005 20:11 CEST Last Modified: 07-02-2005 08:42 CEST ====================================================================== Summary: RMS hardware input and software plaback levels are incorrectly reported under 64 bit linux Description: I'm using the PCI HDSP with a Multiface interface, Everything appears to be correct with the audio, but the hdspmixer reports bogus valus for hardware input and software playback RMS levels. The peak leavels are correct. The problem happens when the driver is compiled into the kernel and when it is a module. I think the problem is caused because the rms regesters are positioned at a 4 byte but not an 8 byte boundary on a 32 bit system, but on a 64 bit system, they are movd back 4 bytes to an 8 byte alignment ====================================================================== ---------------------------------------------------------------------- charbonnel - 07-02-05 08:42 ---------------------------------------------------------------------- Hi, It sounds similar to a bug in the byte swapping code that was fixed some time ago. (see ALSA BUG https://bugtrack.alsa-project.org/alsa-bug/view.php?id=0000801) Do you use the in-kernel alsa driver with 2.6.11 ? If so they may be a little old. What's the version reported by cat /proc/asound/version ? I suspect your patch seems to fix the problem but introduces a one channel offset in the metering values. Thomas Issue History Date Modified Username Field Change ====================================================================== 07-01-05 20:11 ckg New Issue 07-01-05 20:11 ckg File Added: hdsp.patch 07-01-05 20:11 ckg Kernel Version => 2.6.11 07-02-05 08:42 charbonnel Note Added: 0005352 ====================================================================== ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click