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Date: Thu, 16 Jul 2015 08:58:19 -0700
From: Greg KH <greg@kroah.com>
To: Josh Triplett <josh@joshtriplett.org>
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Cc: "Brown, Len" <len.brown@intel.com>,
	"ksummit-discuss@lists.linuxfoundation.org"
	<ksummit-discuss@lists.linuxfoundation.org>,
	Alan Stern <stern@rowland.harvard.edu>,
	Kristen Carlson Accardi <kristen@linux.intel.com>,
	Grant Likely <grant.likely@linaro.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] System-wide interface to specify
 the level of PM tuning
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On Thu, Jul 16, 2015 at 08:53:02AM -0700, Josh Triplett wrote:
> But the kernel already has quirk tables for various hardware, and that
> seems appropriate to continue putting in the kernel.

For some types of devices, sure.  For others, like broken USB keyboards
that can't handle autosuspend, no.  For those we need a userspace
_whitelist_ that udev can use.  So there's no one answer that works for
all types of quirks.

thanks,

greg k-h