From owner-freebsd-mobile@FreeBSD.ORG Sat May 17 08:38:04 2003 Return-Path: Delivered-To: freebsd-mobile@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1643F37B404 for ; Sat, 17 May 2003 08:38:03 -0700 (PDT) Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id 788EB43F93 for ; Sat, 17 May 2003 08:38:02 -0700 (PDT) (envelope-from imp@bsdimp.com) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.12.8/8.12.3) with ESMTP id h4HFbukA074378; Sat, 17 May 2003 09:38:01 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Sat, 17 May 2003 09:37:14 -0600 (MDT) Message-Id: <20030517.093714.94555121.imp@bsdimp.com> To: john@utzweb.net From: "M. Warner Losh" In-Reply-To: <15782.131.107.3.70.1053122902.squirrel@utzweb.net> References: <20030516153211.W24315@12-221-88-80.client.insightBB.com> <15782.131.107.3.70.1053122902.squirrel@utzweb.net> X-Mailer: Mew version 2.1 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: jesse@wingnet.net cc: freebsd-mobile@freebsd.org Subject: Re: IEEE 1394 support X-BeenThere: freebsd-mobile@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Mobile computing with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 17 May 2003 15:38:04 -0000 In message: <15782.131.107.3.70.1053122902.squirrel@utzweb.net> writes: : ie, if it sez 'firewire' on it, it 'Just Works'(tm), be it cardbus, : pcmcia, pci or isa?( dont think there are any isa firewire cards out there : - tho if there are pcmcia cards, then i suppose it could be possible) remove 16-bit stuff from that, and yet. There's no support for things that aren't ohci-fw based. As far as I know, this covers most firewire chips. If there were ISA/PCMCIA firewire cards, then they'd be very slow devices (100Mbps isn't possible sustained). They also wouldn't be supported without a lot of work. : next question is a bit hard to ask tersely, but i'll try... : does firewire avoid the goofyness that usb, usb2.0 has where the plug is : the same, but the chips' bus interface is apparantly not the same? ie usb : is supported in FreeBSD and usb2 is not. is there older, slower, firewire : things and newer, faster, firewire things and they all work? (did that : make sense?) USB 1 and USB 2 are mechanically and electrically compatible. FreeBSD's support for 2.0 is weak right now, although I know that the ehci bridges are now in the tree. I've used usb2 devices in a slower usb1 speeds once in the past. Warner