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From: Greg KH <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
To: Jonathan Cameron <jic23-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Srinivas Pandruvada
	<srinivas.pandruvada-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
	jkosina-AlSwsSmVLrQ@public.gmane.org,
	linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 2/2] iio: hid-sensors: Fix power and report state
Date: Sat, 30 Nov 2013 09:07:32 -0800	[thread overview]
Message-ID: <20131130170732.GA16738@kroah.com> (raw)
In-Reply-To: <5299CBD0.4030403-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

On Sat, Nov 30, 2013 at 11:28:16AM +0000, Jonathan Cameron wrote:
> On 11/27/13 22:19, Srinivas Pandruvada wrote:
> > In the original HID sensor hub firmwares all Named array enums were
> > to 0-based. But the most recent hub implemented as 1-based,
> > because of the implementation by one of the major OS vendor.
> > Using logical minimum for the field as the base of enum. So we add
> > logical minimum to the selector values before setting those fields.
> > Some sensor hub FWs already changed logical minimum from 0 to 1
> > to reflect this and hope every other vendor will follow.
> > There is no easy way to add a common HID quirk for NAry elements,
> > even if the standard specifies these field as NAry, the collection
> > used to describe selectors is still just "logical".
> >
> > Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
> 
> Looks like a good solution to me.
> 
> This one is a little interesting.  Technically I 'believe' we don't have
> a bug as it is possible to make these devices work via the kconfig option
> and it definitely isn't a regression.  As such I have applied this to the
> branch intended for the next kernel cycled (togreg) rather than to the
> fixes branch.
> 
> If people have a very strong feeling about this then shout reasonably quickly - I'll
> probably hold off sending that branch to Greg for a few days anyway.
> 
> I've cc'd GregKH to see if he has any input on the path this should take.

Making things "dynamic" and not depending on a random Kconfig option
(which one should a distro pick?) is a -fix in my mind...

thanks,

greg k-h

  parent reply	other threads:[~2013-11-30 17:07 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-27 22:19 [PATCH 1/2] HID: hid-sensor-hub: Add logical min and max Srinivas Pandruvada
2013-11-27 22:19 ` [PATCH 2/2] iio: hid-sensors: Fix power and report state Srinivas Pandruvada
     [not found]   ` <1385590783-27604-2-git-send-email-srinivas.pandruvada-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-30 11:28     ` Jonathan Cameron
     [not found]       ` <5299CBD0.4030403-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-11-30 17:07         ` Greg KH [this message]
2013-12-02 16:19         ` Srinivas Pandruvada
     [not found]           ` <529CB329.2020101-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-12-02 17:11             ` Jonathan Cameron
     [not found] ` <1385590783-27604-1-git-send-email-srinivas.pandruvada-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2013-11-30 11:31   ` [PATCH 1/2] HID: hid-sensor-hub: Add logical min and max Jonathan Cameron
     [not found]     ` <5299CCAA.6090100-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
2013-12-02 13:08       ` Jiri Kosina
2013-12-02 17:14         ` Jonathan Cameron
     [not found]           ` <b2e31404-966e-4f1a-a85b-a01fa63064b9-2ueSQiBKiTY7tOexoI0I+QC/G2K4zDHf@public.gmane.org>
2013-12-02 21:07             ` Jonathan Cameron

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