From mboxrd@z Thu Jan 1 00:00:00 1970 From: Timur Tabi Subject: Re: hw_params function and OSS emulation Date: Wed, 22 Aug 2007 10:48:44 -0500 Message-ID: <46CC5ADC.4020605@freescale.com> References: <46CB2BB4.9060808@freescale.com> <46CC480F.7090604@freescale.com> <46CC4FF3.6090607@freescale.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from de01egw01.freescale.net (de01egw01.freescale.net [192.88.165.102]) by alsa0.perex.cz (Postfix) with ESMTP id 0050D1038DF for ; Wed, 22 Aug 2007 17:48:48 +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: Takashi Iwai Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Takashi Iwai wrote: > The driver should deny a too large size if it's unrealistic. > But 1MB is realistic for many systems. So, the number depends on the > system. Are there any popular applications that really want a DMA buffer larger than 64KB? On a side note, I notice that ALSA has some scatter-gather support. If an application uses S/G, I presume the concept of a DMA buffer size doesn't even apply? -- Timur Tabi Linux Kernel Developer @ Freescale