From mboxrd@z Thu Jan 1 00:00:00 1970 From: Philip Balister Subject: DMA example Date: Wed, 24 Feb 2010 11:34:07 -0800 Message-ID: <4B857F2F.7000201@balister.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.geekisp.com ([216.168.135.169]:2212 "EHLO starfish.geekisp.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757736Ab0BXTeM (ORCPT ); Wed, 24 Feb 2010 14:34:12 -0500 Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "linux-omap@vger.kernel.org" I am trying to setup a dma operation to copy memory from GPMC address space into RAM. The only examples using the omap-dma api use hardware triggers. When I start a transfer, I end up with a DMA transaction error when I start the transfer. Does anyone have a good example of a software transfer? Currently, I am tracing the omap dma api to see how things map into the registers .... Philip