From: Yan Li <elliot.li.tech@gmail.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: gregkh@suse.de, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Enable CONFIG_USB_SUSPEND by default or some mobile HD can't be unplugged safely
Date: Fri, 2 Jan 2009 22:28:28 +0800 [thread overview]
Message-ID: <20090102142828.GD4833@thyme.bj.intel.com> (raw)
In-Reply-To: <20090102140023.GC4833@thyme.bj.intel.com>
On Fri, Jan 02, 2009 at 10:00:23PM +0800, Yan Li wrote:
> Now I know 3 methods supposed can be used to shut the device:
> 1. (Alan Stern said Windows use this) cut the USB port's power
> 2. send STOP SCSI command to stop it
> 3. put it into suspend mode
>
> For the 1st method I have no much experience with Windows so I can't
> verify. But now I doubt it. Since there are many early USB devices
> that still show light on after you "safely remove" it from Windows. I
> guess the power is still supplied but the device is send a command to
> be shutdown or suspended.
Sorry, Alan have not said `cut the power'. He said `disable the port'.
--
Li, Yan
next prev parent reply other threads:[~2009-01-02 14:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-01 16:03 Enable CONFIG_USB_SUSPEND by default or some mobile HD can't be unplugged safely Yan Li
2009-01-01 16:07 ` [PATCH] enable CONFIG_USB_SUSPEND by default Yan Li
2009-01-01 17:29 ` Enable CONFIG_USB_SUSPEND by default or some mobile HD can't be unplugged safely Alan Stern
2009-01-02 13:23 ` Yan Li
2009-01-01 17:32 ` Alexander E. Patrakov
2009-01-01 17:45 ` Alan Stern
2009-01-02 13:37 ` Yan Li
2009-01-02 13:46 ` Alexander E. Patrakov
2009-01-01 19:09 ` Robert Hancock
2009-01-02 9:56 ` Tino Keitel
2009-01-02 14:00 ` Yan Li
2009-01-02 14:08 ` Tino Keitel
2009-01-02 14:28 ` Yan Li [this message]
2009-01-02 16:04 ` Alan Stern
2009-01-03 2:33 ` Yan Li
2009-01-02 15:50 ` Mark Lord
2009-01-02 15:51 ` Mark Lord
2009-01-02 18:15 ` Tino Keitel
2009-01-03 2:24 ` Yan Li
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