From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: [Q] Writing an alsa module for usb audio & video capture device Date: Wed, 06 Jun 2012 19:26:36 +0200 Message-ID: <4FCF92CC.2050600@ladisch.de> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out1-smtp.messagingengine.com (out1-smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id 8ABF524484 for ; Wed, 6 Jun 2012 19:27:07 +0200 (CEST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Ezequiel Garcia Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Ezequiel Garcia wrote: > 1. Why do I need to write another module for my device? Is it not > possible to make it work > with snd-usb-audio? Of course it is possible; just make it USB Audio class compliant. > 2. The device uses ac97 chip, could I use some ac97 common code > instead of rewriting it myself? The AC'97 code is for managing codecs on an AC'97 bus, but the bus inside a USB device is not directly accessible to code on the host. Regards, Clemens