From: Greg KH <greg@kroah.com>
To: Andrew Barr <andrew.james.barr@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Cut power to a USB port?
Date: Tue, 2 Jan 2007 00:32:58 -0800 [thread overview]
Message-ID: <20070102083258.GA24516@kroah.com> (raw)
In-Reply-To: <1167684985.28023.4.camel@localhost>
On Mon, Jan 01, 2007 at 03:56:25PM -0500, Andrew Barr wrote:
> I have a simple question perhaps someone can help me with here...
>
> I have one of those simple LED keyboard lamps that get their power from
> the USB port. Is there some way in Linux, using files under /sys I would
> imagine, to cut power to the USB port into which this lamp is plugged? I
> know I would have to manually figure out what port it's plugged into, as
> it is not a "real" USB device...e.g. it just draws power. I would like
> to be able to programmatically switch the lamp on and off.
Search the archives of the linux-usb-devel mailing list for a program
that might do this for you (depending on your hardware.)
good luck,
greg k-h
next prev parent reply other threads:[~2007-01-02 8:58 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-01 20:56 Cut power to a USB port? Andrew Barr
2007-01-01 21:52 ` Oliver Neukum
2007-01-02 8:32 ` Greg KH [this message]
2007-01-02 15:28 ` Andrew Barr
2007-01-02 16:36 ` Randy Dunlap
2007-01-02 17:08 ` Andrew Barr
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