From owner-freebsd-hackers Wed Nov 15 21:33:06 1995 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id VAA21737 for hackers-outgoing; Wed, 15 Nov 1995 21:33:06 -0800 Received: from novidc.blr.novell.com (novidc.blr.novell.com [164.99.119.64]) by freefall.freebsd.org (8.6.12/8.6.6) with SMTP id VAA21732 for ; Wed, 15 Nov 1995 21:32:54 -0800 Date: Thu, 16 Nov 95 11:02 IST From: koshy@blr.novell.com To: hackers@freebsd.org Subject: IDE drives using DMA? Content-Length: 301 Content-Type: text/plain Message-ID: <30aacced0.2096@novidc.blr.novell.com> Sender: owner-hackers@freebsd.org Precedence: bulk Hi, I chanced upon a book about ATA drives and noted there that IDE can optionally support DMA transfers in addition to the regular programmed IO. Does anyone have any experience with this? Are such configurations common? Any catches or caveats that hinder DMA use with IDE drives? Thanks, Koshy