From owner-freebsd-usb@FreeBSD.ORG Mon Jun 5 11:57:56 2006 Return-Path: X-Original-To: freebsd-usb@freebsd.org Delivered-To: freebsd-usb@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EE9CB16A597 for ; Mon, 5 Jun 2006 11:57:56 +0000 (UTC) (envelope-from jhs@flat.berklix.net) Received: from thin.berklix.org (thin.berklix.org [194.246.123.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 031E843D53 for ; Mon, 5 Jun 2006 11:57:55 +0000 (GMT) (envelope-from jhs@flat.berklix.net) Received: from js.berklix.net (p549A5A7F.dip.t-dialin.net [84.154.90.127]) (authenticated bits=128) by thin.berklix.org (8.12.11/8.12.11) with ESMTP id k55Bvl4o042960; Mon, 5 Jun 2006 13:57:53 +0200 (CEST) (envelope-from jhs@flat.berklix.net) Received: from fire.jhs.private (fire.jhs.private [192.168.91.41]) by js.berklix.net (8.12.11/8.12.11) with ESMTP id k55BvYQX014953; Mon, 5 Jun 2006 13:57:35 +0200 (CEST) (envelope-from jhs@flat.berklix.net) Received: from fire.jhs.private (localhost.jhs.private [127.0.0.1]) by fire.jhs.private (8.13.1/8.13.1) with ESMTP id k55C1Nw9087761; Mon, 5 Jun 2006 14:01:23 +0200 (CEST) (envelope-from jhs@fire.jhs.private) Received: (from jhs@localhost) by fire.jhs.private (8.13.1/8.13.1/Submit) id k55C1NHd087760; Mon, 5 Jun 2006 14:01:23 +0200 (CEST) (envelope-from jhs) Date: Mon, 5 Jun 2006 14:01:23 +0200 (CEST) Message-Id: <200606051201.k55C1NHd087760@fire.jhs.private> To: freebsd-usb@freebsd.org From: "Julian Stacey" Organization: http://berklix.com Munich Unix, BSD, Internet Consultancy Fcc: sent-mail User-agent: EXMH http://beedub.com/exmh/ on FreeBSD http://freebsd.org X-URL: http://berklix.com/~jhs/cv/ Cc: garyj@jennejohn.org Subject: usbdevs "self powered" is misleading X-BeenThere: freebsd-usb@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD support for USB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Jun 2006 11:57:57 -0000 "self powered" is reported by 6.1-RELEASE usbdevs for my small external disc. It seems a misnomer & should at most be "Can be self powered" ? The disc housing has a socket to apply power, but was not plugged in. (I don't even have a power supply for it). Disc was cabled direct to laptop, not through a hub, & showed: Controller /dev/usb1: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 addr 2: full speed, self powered, config 1, USB 2.0 Storage Device(0x5621), vendor 0x0402(0x0402), rev 1.03 When I added a USB-2 Hub (with hub power supply plugged in to 220V)" Controller /dev/usb1: addr 1: full speed, self powered, config 1, UHCI root hub(0x0000), Intel(0x0000), rev 1.00 port 1 addr 2: full speed, self powered, config 1, USB2.0 Hub Cont(0x0058), NEC Corporation(0x0409), rev 1.00 port 1 addr 5: full speed, self powered, config 1, USB 2.0 Storage Device(0x5621), vendor 0x0402(0x0402), rev 1.03 Sometimes "self powered" seems correct though, as for eg: - a GPS with battery inside. - a USB2-IDE + 3.5" IDE disc + external 220V supply Comments ? Julian -- Julian Stacey. Internet & Unix Consultant, Munich. http://berklix.com Mail in Ascii, HTML = spam. Ihr Rauch = mein allergischer Kopfschmerz.