From: Grant Likely <grant.likely@secretlab.ca>
To: Greg Kroah-Hartman <greg@kroah.com>
Cc: linux-kernel@vger.kernel.org,
devicetree-discuss@lists.ozlabs.org,
Tobias Klauser <tklauser@distanz.ch>,
Frederic Lambert <frdrc66@gmail.com>,
Rob Herring <rob.herring@calxeda.com>,
Mark Brown <broonie@sirena.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH] drivercore: Output common devicetree information in uevent
Date: Wed, 1 Feb 2012 14:26:14 -0700 [thread overview]
Message-ID: <CACxGe6semcPXkGfEN76DezbC-sAgkczjofbjvbexM8g_8gPdBw@mail.gmail.com> (raw)
In-Reply-To: <20120201190940.GC20358@kroah.com>
On Wed, Feb 1, 2012 at 12:09 PM, Greg Kroah-Hartman <greg@kroah.com> wrote:
> On Wed, Feb 01, 2012 at 11:39:04AM -0700, Grant Likely wrote:
>> When userspace needs to find a specific device, it currently isn't easy to
>> resolve a /sys/devices/ path from a specific device tree node. Nor is it
>> easy to obtain the compatible list for devices.
>>
>> This patch generalizes the code that inserts OF_* values into the uevent
>> device attribute so that any device that is attached to an OF node will
>> have that information exported to userspace. Without this patch only
>> platform devices and some powerpc-specific busses have access to this
>> data.
>>
>> The original function also creates a MODALIAS property for the compatible
>> list, but that code has not been generalized into the common case because
>> it has the potential to break module loading on a lot of bus types. Bus
>> types are still responsible for their own MODALIAS properties.
>
> So you are only adding new properties to be exported, not removing any
> from any existing devices, right?
>
> If so, I have no objection to this at all, if you want to take this
> through your tree for 3.4, please feel free to add:
>
> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
>
> Or I can take it through my driver-core tree, which ever is easiest for
> you.
I'll take it via the devicetree branch. Thanks.
g.
next prev parent reply other threads:[~2012-02-01 21:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-01 18:39 [PATCH] drivercore: Output common devicetree information in uevent Grant Likely
2012-02-01 19:09 ` Greg Kroah-Hartman
2012-02-01 21:26 ` Grant Likely [this message]
[not found] <1328121082-21802-1-git-send-email-grant.likely@secretlab.ca>
[not found] ` <1328130989.28487.83.camel@pasglop>
2012-02-01 21:29 ` Grant Likely
2012-02-01 23:20 ` Grant Likely
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