From: Pavel Machek <pavel@ucw.cz>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: Nigel Cunningham <ncunningham@cyclades.com>,
Linux-pm mailing list <linux-pm@lists.osdl.org>
Subject: Re: Problems with PM_FREEZE
Date: Wed, 28 Sep 2005 23:18:22 +0200 [thread overview]
Message-ID: <20050928211822.GE2506@elf.ucw.cz> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0509281713490.5193-100000@iolanthe.rowland.org>
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On St 28-09-05 17:15:21, Alan Stern wrote:
> On Wed, 28 Sep 2005, Pavel Machek wrote:
>
> > > You need to state these things carefully. A complete power-off does
> > > reset/disconnect USB devices. However, turning off your computer
> > > might not do a complete power-off; it may well leave suspend current
> > > available. If that's true, USB devices won't be disconnected.
> >
> > Examples, please. Thinkpad X32 certainly does not provide power on USB
> > when turned off.
>
> I don't have any examples. However you're more likely to find suspend
> current available on a desktop system than on a laptop, I imagine. Those
> big power supplies don't really turn off all the way unless you unplug
> them from the wall socket.
USB takes enough power to be connected to 5V, not 5V-standby. Sorry.
Pavel
--
if you have sharp zaurus hardware you don't need... you know my address
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next prev parent reply other threads:[~2005-09-28 21:18 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-24 2:09 Problems with PM_FREEZE Alan Stern
2005-09-27 12:26 ` Pavel Machek
2005-09-27 19:02 ` Alan Stern
2005-09-27 19:58 ` Pavel Machek
2005-09-27 20:25 ` Alan Stern
2005-09-27 20:32 ` Pavel Machek
2005-09-27 21:30 ` Nigel Cunningham
2005-09-27 22:01 ` Pavel Machek
2005-09-27 23:19 ` Nigel Cunningham
2005-09-28 2:58 ` Alan Stern
2005-09-28 3:27 ` Nigel Cunningham
2005-09-28 15:46 ` David Brownell
2005-09-28 16:17 ` Alan Stern
2005-09-28 20:53 ` Pavel Machek
2005-09-28 21:15 ` Alan Stern
2005-09-28 21:18 ` Pavel Machek [this message]
2005-09-28 21:20 ` David Brownell
2005-09-28 21:22 ` Pavel Machek
2005-09-28 13:03 ` Pavel Machek
2005-09-29 15:45 ` Alan Stern
2005-09-29 17:12 ` David Brownell
2005-09-29 17:31 ` Pavel Machek
2005-09-29 18:22 ` David Brownell
2005-09-29 19:01 ` Rafael J. Wysocki
2005-09-29 17:49 ` Alan Stern
2005-09-28 13:04 ` Pavel Machek
2005-09-28 13:51 ` Rafael J. Wysocki
2005-09-28 18:54 ` Alan Stern
2005-09-28 19:09 ` Rafael J. Wysocki
2005-09-28 19:31 ` Alan Stern
2005-09-28 20:51 ` Pavel Machek
2005-09-28 21:13 ` Alan Stern
2005-09-28 21:19 ` Pavel Machek
2005-09-28 21:56 ` Rafael J. Wysocki
2005-09-28 22:01 ` Pavel Machek
2005-09-28 22:14 ` Rafael J. Wysocki
2005-09-28 20:51 ` Pavel Machek
2005-09-28 21:08 ` David Brownell
2005-09-28 21:13 ` Pavel Machek
2005-09-28 21:12 ` Alan Stern
2005-09-28 15:28 ` David Brownell
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