From: David Brownell <david-b@pacbell.net>
To: linux-pm@lists.osdl.org
Cc: Andy Kennedy <akennedy@techmoninc.com>
Subject: Re: Ejecting/Powering off/ -> Turn off the device lamp.
Date: Mon, 22 May 2006 10:07:16 -0700 [thread overview]
Message-ID: <200605221007.18175.david-b@pacbell.net> (raw)
In-Reply-To: <4471EBC2.9000607@techmoninc.com>
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On Monday 22 May 2006 9:50 am, Andy Kennedy wrote:
> I am working with an embedded system that will have no user interaction
> save the USB port. ...
>
> I have TTLs on the embedded system; I may just have to use those.
Sounds like you need to design in some additional user interaction,
either a LED driven by a GPIO to indicate "OK to remove", or else
a LED driven by that port's root hub. (Some root hubs support the
standardized root hub LED mechanisms; most don't.)
- Dave
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next prev parent reply other threads:[~2006-05-22 17:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-22 16:21 Ejecting/Powering off/ -> Turn off the device lamp Andy Kennedy
2006-05-22 16:40 ` Alan Stern
2006-05-22 16:50 ` Andy Kennedy
2006-05-22 17:07 ` David Brownell [this message]
2006-05-22 17:03 ` David Brownell
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