From mboxrd@z Thu Jan 1 00:00:00 1970 From: Timur Tabi Subject: params_buffer_size() and params_period_bytes() are returning the same value Date: Wed, 14 Nov 2007 15:53:33 -0600 Message-ID: <473B6E5D.3040303@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 2AE5524822 for ; Wed, 14 Nov 2007 22:53:38 +0100 (CET) Received: from de01smr01.freescale.net (de01smr01.freescale.net [10.208.0.31]) by de01egw01.freescale.net (8.12.11/de01egw01) with ESMTP id lAELrYxJ000651 for ; Wed, 14 Nov 2007 14:53:34 -0700 (MST) Received: from [10.82.19.119] (ld0169-tx32.am.freescale.net [10.82.19.119]) by de01smr01.freescale.net (8.13.1/8.13.0) with ESMTP id lAELrXpc029191 for ; Wed, 14 Nov 2007 15:53:33 -0600 (CST) 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 I have an ASOC v1 driver that I'm wrapping up. I've noticed something weird in my hw_params() function. I have this code: size_t buffer_size = params_buffer_size(hw_params); size_t period_size = params_period_bytes(hw_params); printk(KERN_INFO "%s: buffer_size=%x period_size=%x\n", __FUNCTION__, buffer_size, period_size); printk(KERN_INFO "%s: params_periods=%u\n", __FUNCTION__, params_periods(hw_params)); And it produces this output: fsl_dma_hw_params: buffer_size=5dc0 period_size=5dc0 fsl_dma_hw_params: params_periods=4 Why am I getting the same value for buffer_size and period_size? buffer_size should be four times period_size. -- Timur Tabi Linux kernel developer at Freescale