From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: Tenor TE8802, USB : clics and crackles during music play Date: Tue, 08 Apr 2014 12:29:47 +0200 Message-ID: <5343CF9B.8020202@ladisch.de> References: <20140114143417.GB23764@tamtam.fritz.box> <533ECF3C.3020404@ladisch.de> <534305F1.8040805@ladisch.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from dehamd003.servertools24.de (dehamd003.servertools24.de [31.47.254.18]) by alsa0.perex.cz (Postfix) with ESMTP id 79EFD2656C0 for ; Tue, 8 Apr 2014 12:29:55 +0200 (CEST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: mick Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org mick wrote: > are you asking me personally to test or is this a general call for the > group? Both. I cannot apply this patch before it is tested by somebody. > If you need me to test, what version of kernel sources do I patch? Any more-or-less recent version should work. > Your patch looks quite different from the solution I pointed out. Why? That patch did some inefficient and superfluous things, and anonymous patches cannot go into the kernel. > In particular the assertion: >> + * The TEAC UD-H01 firmware sometimes changes the feedback value >> + * by +/- 0x1.0000. > is quite different from the assertion > "the 3rd byte of the feadback value is getting corrupted and probably > changing when it should not " These two assertions describe the same change. > Also, you made it quite explicit for the TEAC UD-H01 but I think it > should be more general. I have the Teac A-H01 and it also has the > problem. As far as I gather from the various discussions on the Web it > probably is a general Tenor 8802 issue. I was not aware of these other devices. What are the vendor/device IDs of the A-H01? Regards, Clemens