From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: Fw: Using loopback card to Connect GSM two way call to the real sound card UDA1345TS Date: Thu, 02 Apr 2015 17:08:40 +0200 Message-ID: <551D5B78.60703@ladisch.de> References: <1425878251963.1340@tataelxsi.co.in> <1425878360800.70892@tataelxsi.co.in>, <54FD552C.7020902@ladisch.de>, <1425922601141.50130@tataelxsi.co.in> <1425964490006.15084@tataelxsi.co.in>, <54FECC69.9020600@ladisch.de> <1427510661706.37789@tataelxsi.co.in>, <551D0F35.6010709@ladisch.de> <1427970980529.96067@tataelxsi.co.in> 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 06745260569 for ; Thu, 2 Apr 2015 17:08:42 +0200 (CEST) In-Reply-To: <1427970980529.96067@tataelxsi.co.in> 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: Srinivasan S Cc: "alsa-devel@alsa-project.org" , "linux-audio-dev@lists.linuxaudio.org" List-Id: alsa-devel@alsa-project.org Srinivasan S wrote: > I didn't understand what is 'two channel devices' does The two channels are "left" and "right". > Regarding bindings as you explained"bindings.x y" or "bindings { x y }" maps channel x of this device to > channel y of the slave device. > > I didn't understand channel x of this device means is it the real sound card??? which is the current device ie., channel x of this device means??? > > I didn't understand channel y of the slave device means??.. ie., which is slave device here???? "This device" is the virtual device that is defined. The slave device is the device whose name is specified with "slave.pcm". Regards, Clemens