From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [QUERY] [AUDIO][OMAP3 EVM] arecord not working on OMAP3 EVM Date: Fri, 21 Jan 2011 09:56:50 +0200 Message-ID: <4D393C42.1070503@nokia.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from smtp.nokia.com ([147.243.128.24]:23007 "EHLO mgw-da01.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750882Ab1AUH46 (ORCPT ); Fri, 21 Jan 2011 02:56:58 -0500 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "ext Koyamangalath, Abhilash" Cc: "linux-omap@vger.kernel.org" , "alsa-devel@vger.kernel.org" On 01/20/11 17:26, ext Koyamangalath, Abhilash wrote: > Hi all > While testing audio capture (using arecord e,g.),I'm getting only noi= se in the (zeroed out) output buffers on the OMAP3 EVM. > I have enabled AUXL and AUXR mic inputs through alsamixer, which acco= rding to the schematics are connected to the "Audio In" > connector on the board, even though the TWL4030 reg list does not all= ow me any ways ( or so I think) to specify mic-bias for=20 > these aux inputs. Well, it is auxiliary input (line in). You do not need bias for it. I do not have access to OMAP3 EVM documentation, but Beagle also have AUXL/R as input. I guess you need to use correct cable, and correct source for the input (stereo jack I suppose). > With AUXL and AUXR muted - I get only silence, which seems to make se= nse. > Is there any basic startup setting I'm missing, maybe specific to OMA= P3 EVM? Beagle? > Has anyone seen anything like this before, and could provide pointers= ? My bet goes for the wrong cable/accessory pair. --=20 P=E9ter -- To unsubscribe from this list: send the line "unsubscribe linux-omap" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html