From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans-Christian Egtvedt Subject: Is the mixer interface in the kernel protect against concurrent access? Date: Mon, 17 Dec 2007 15:13:37 +0100 Message-ID: <1197900817.1365.38.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from relay.atmel.no (nat-132.atmel.no [80.232.32.132]) by alsa0.perex.cz (Postfix) with ESMTP id 8A1FF244E8 for ; Mon, 17 Dec 2007 15:14:19 +0100 (CET) Received: from [10.191.252.83] (dhcp-252-083.norway.atmel.com [10.191.252.83]) by relay.atmel.no (8.13.4/8.13.4) with ESMTP id lBHEEIxg054958 for ; Mon, 17 Dec 2007 15:14:18 +0100 (CET) (envelope-from hcegtvedt@atmel.no) 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: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi, I am solving a locking bug in the at73c213 SPI sound driver, and wondered if the mixer API is protected against concurrent access in ALSA? Or should I implement a mutex to protect my hardware against concurrent access? -- Mvh Hans-Christian Egtvedt