From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.77) (envelope-from ) id 1Sq0cs-00055b-Jq for garchives@archives.gentoo.org; Sat, 14 Jul 2012 11:35:06 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id B233221C02A; Sat, 14 Jul 2012 11:34:47 +0000 (UTC) Received: from smtp.gentoo.org (smtp.gentoo.org [140.211.166.183]) by pigeon.gentoo.org (Postfix) with ESMTP id 47DA1E078C for ; Sat, 14 Jul 2012 11:34:00 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.gentoo.org (Postfix) with ESMTP id A00C71B4018 for ; Sat, 14 Jul 2012 11:33:59 +0000 (UTC) X-Virus-Scanned: by amavisd-new using ClamAV at gentoo.org X-Spam-Flag: NO X-Spam-Score: -2.474 X-Spam-Level: X-Spam-Status: No, score=-2.474 tagged_above=-999 required=5.5 tests=[AWL=-0.562, BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=no Received: from smtp.gentoo.org ([127.0.0.1]) by localhost (smtp.gentoo.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WsqhfBZfMstB for ; Sat, 14 Jul 2012 11:33:54 +0000 (UTC) Received: from plane.gmane.org (plane.gmane.org [80.91.229.3]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.gentoo.org (Postfix) with ESMTPS id ABFAF1B401D for ; Sat, 14 Jul 2012 11:33:53 +0000 (UTC) Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1Sq0bd-0007JS-3X for gentoo-dev@gentoo.org; Sat, 14 Jul 2012 13:33:49 +0200 Received: from ip68-231-22-224.ph.ph.cox.net ([68.231.22.224]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 14 Jul 2012 13:33:49 +0200 Received: from 1i5t5.duncan by ip68-231-22-224.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Sat, 14 Jul 2012 13:33:49 +0200 X-Injected-Via-Gmane: http://gmane.org/ To: gentoo-dev@lists.gentoo.org From: Duncan <1i5t5.duncan@cox.net> Subject: [gentoo-dev] Re: udev <-> mdev Date: Sat, 14 Jul 2012 11:33:40 +0000 (UTC) Message-ID: References: <4FFD7949.4000204@gentoo.org> <20120712034036.GA2439@waltdnes.org> <4FFED31D.9010505@gentoo.org> <20120712200741.GB3723@waltdnes.org> <20120712222931.GA3044@linux1> <20120713200449.GA6292@waltdnes.org> <50008143.3050708@gentoo.org> <20120714001343.GA6879@waltdnes.org> <87txxa7tuj.fsf@einstein.gmurray.org.uk> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: ip68-231-22-224.ph.ph.cox.net User-Agent: Pan/0.139 (Sexual Chocolate; GIT 014d082 /usr/src/portage/src/egit-src/pan2) Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 672dec71-1bc1-4a2f-8176-2314dc2a3fbd X-Archives-Hash: 6119709e6aef2715205a1ddbebbc4ca4 Graham Murray posted on Sat, 14 Jul 2012 07:13:56 +0100 as excerpted: > "Walter Dnes" writes: >=20 >> Do you realize this would effectively kill linux in the embedded >> device area? Udev, even without the systemd code, is simply to large >> for embedded devices. >=20 > But surely most embedded devices do not need hotplug functionality, the= y > have a known, fixed, set of devices. So should static nodes in /dev/ no= t > be sufficient? Well, there's (kernel-side) devfs as well, as others have mentioned.=20 Meanwhile, "embedded" can mean different things to different users of the= =20 term. I expect few would argue that onboard boot devices on embedded are= =20 likely to change, but there's a lot of (arguably embedded) devices with=20 USB-host support these days, and some form of dynamic device-nodes, even=20 if it's just devfs, can make that much more flexible and easier to deal=20 with. What's interesting is the potential on such devices for USB-based=20 storage, displays, sound, net and HID, blurring the definition of=20 "embedded" even further, altho one would hope nobody tries to connect all= =20 of those up to the same host USB port (via hub) at the same time as I can= =20 just imagine the bandwidth management headaches trying to do so, thus=20 implying 2-3 USB host-ports, minimum. --=20 Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman