From owner-freebsd-usb@FreeBSD.ORG Sat Aug 21 17:21:00 2010 Return-Path: Delivered-To: freebsd-usb@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id D75AE10656AC for ; Sat, 21 Aug 2010 17:21:00 +0000 (UTC) (envelope-from thebeelzebubtrigger@gmail.com) Received: from mail-gw0-f54.google.com (mail-gw0-f54.google.com [74.125.83.54]) by mx1.freebsd.org (Postfix) with ESMTP id 841E08FC1D for ; Sat, 21 Aug 2010 17:21:00 +0000 (UTC) Received: by gwj23 with SMTP id 23so1944078gwj.13 for ; Sat, 21 Aug 2010 10:20:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:subject:from:to:cc :in-reply-to:references:content-type:content-transfer-encoding :organization:date:message-id:mime-version:x-mailer; bh=OnZhjLLEpBTQBiNXvvxF91FMtNhgkWZ2AfLjCc6DaGk=; b=e7yIMj5Em6ZIdy3+WVDnWPLcw8gJldpVjIapkITAJ/VdW7crLHP7EDnOINUiEyvA0e 8+U5nq4UMSsyyxV3ZQa4MKGqkIhYvBhFWDSSwBAFvm3heVluV43ZSYE2p5ZsO07S/IBa ymyeWZX60cS0ToMN8iYP8QH+8WaZpxZeXplME= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type :content-transfer-encoding:organization:date:message-id:mime-version :x-mailer; b=LYCU0gMClnAhdXASKxXbjVJyh59+D4c47gK9prVJbBfeFoTvOgWWFv8GGLuL1Bx2hI 3lDF9mrTPWqJRk/gMkAt8kFd/vJskT658R6TMkVSU3dH7AZZdKAirCD8pUW3/9rIAgQA hCIOjlmaJslNhmSaX9Aza85/d+DWi3nwSAofs= Received: by 10.151.47.4 with SMTP id z4mr3243614ybj.357.1282411259631; Sat, 21 Aug 2010 10:20:59 -0700 (PDT) Received: from satcidananda.16x108.merseine.nu (adsl-152-64-246.asm.bellsouth.net [72.152.64.246]) by mx.google.com with ESMTPS id q7sm78666yba.3.2010.08.21.10.20.58 (version=TLSv1/SSLv3 cipher=RC4-MD5); Sat, 21 Aug 2010 10:20:59 -0700 (PDT) From: indulekha To: "Julian H. Stacey" In-Reply-To: <201008211635.o7LGZan3008193@fire.js.berklix.net> References: <201008211635.o7LGZan3008193@fire.js.berklix.net> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Organization: what, me organize? Date: Sat, 21 Aug 2010 13:20:57 -0400 Message-ID: <1282411257.2584.36.camel@satcidananda> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 FreeBSD GNOME Team Port Cc: freebsd-usb@freebsd.org Subject: Re: USB HDD needs replugging? 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: Sat, 21 Aug 2010 17:21:01 -0000 On Sat, 2010-08-21 at 18:35 +0200, Julian H. Stacey wrote: > Hans Petter Selasky wrote: > > On Saturday 21 August 2010 17:37:18 indulekha wrote: > > > On Sat, 2010-08-21 at 17:18 +0200, Hans Petter Selasky wrote: > > > > > Yes, there is a dmesg error: > > > > >=20 > > > > > ugen4.5: <(null)> at usbus4 (disconnected) > > > > > uhub_reattach_port:435: could not allocate new device! > > > > >=20 > > > > > But then just a few lines later, dmesg says: > > > > >=20 > > > > > ugen4.5: at usbus4 > > > > > umass1: on u= sbus4 > > > > > umass1: SCSI over Bulk-Only; quirks =3D 0x0000 > > > > > umass1:3:1:-1: Attached to scbus3 > > > > > da1 at umass-sim1 bus 1 target 0 lun 0 > > > > > da1: Fixed Direct Access SCSI-4 device > > > > > da1: 40.000MB/s transfers > > > > > da1: 305245MB (625142448 512 byte sectors: 255H 63S/T 38913C) > > > > >=20 > > > > > I'm thinking there's some sort of power management scheme in the > > > > > Seagate that umass has trouble accommodating. > > > >=20 > > > > Does your USB device have a separate power supply? > > > >=20 > > > > --HPS >=20 >=20 > Joining late, sorry >=20 > > > No, it's one of those pocket-sized HDDs. > > > This one, actually: > > > http://www.amazon.com/gp/product/B001SJZV10/ref=3Doss_product >=20 > No current rating at=20 > http://www.seagate.com/ww/v/index.jsp?name=3DST903204EXM101-RK-apac-expa= nsion-portable-usb-320gb-hd&vgnextoid=3D16816583b2561210VgnVCM1000001a48090= aRCRD&locale=3Den-US#TabContentSpecifications >=20 > > Hi, > >=20 > > Try to use an external self-powered USB HUB and see if the problem is t= he=20 > > same. >=20 > Yes, > PS Ive had so much grief with USB over the years, I cut out some > USB sockets off a dead mboard, so I can intercept & meausure voltage > & current on USB devices. >=20 > USB 1 & 2 is spec'd at <=3D 0.5 Amp, (more on USB3 later) >=20 > As well as the hub, > A power doubler USB Y leads into 2 sockets of the hub may help, > also plug both of those in before the disc in the other end. (else > voltage droop while disc spins may confuse disc internal logic). >=20 > PPS HPS Re that suspicion above, I also have a device that used to > confuse usbd & prob. still confuses devd, (I guess it was turning > itself off after listening to cable, anyway it's free if you or > another USB developer wants to play with it, contact me. > http://berklix.com/~jhs/txt/clipman/ >=20 > Cheers, > Julian Actually, I haven't had any trouble with USB for a long time now but=20 maybe that's just luck. :) Had to jump through some minor hoops to get=20 my Blackberry to mount, otherwise USB has pretty much "just worked" for me the last two years or so.=20 Well, there was one other purchase of a portable USB HDD before this one; it wasn't recognized at all so I just returned it. I'd have returned this one too had I known...=20 --=20 caveat utilitor, Indi =20