linux-kernel - Re: [PATCH 07/12] Input: synaptics - rename synaptics

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Date:	Tue, 5 Jul 2011 12:39:58 +0800
From:	Daniel Kurtz <djkurtz@...omium.org>
To:	Henrik Rydberg <rydberg@...omail.se>
Cc:	dmitry.torokhov@...il.com, chase.douglas@...onical.com,
	rubini@...l.unipv.it, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org, derek.foreman@...labora.co.uk,
	daniel.stone@...labora.co.uk, olofj@...omium.org
Subject: Re: [PATCH 07/12] Input: synaptics - rename synaptics_data.mt to agm

On Tue, Jul 5, 2011 at 5:26 AM, Henrik Rydberg <rydberg@...omail.se> wrote:
> On Wed, Jun 29, 2011 at 01:07:17PM +0800, djkurtz@...omium.org wrote:
>> From: Daniel Kurtz <djkurtz@...omium.org>
>>
>> Rename the synaptics_data.mt field to priv->agm to indicate it is the
>> hardware state reported in a synaptics AGM packet.
>>
>> When a Synaptics touchpad is in "AGM" mode, and multiple fingers are
>> detected, the touchpad sends alternating "Advanced Gesture Mode" (AGM) and
>> "Simple Gesture Mode" (SGM) packets.
>>   The AGM packets have w=2, and contain reduced resolution finger data.
>>   The SGM packets have w={0,1} and contain full resolution finger data.
>>
>> Signed-off-by: Daniel Kurtz <djkurtz@...omium.org>
>> ---
>
> How about just modifying the comment, i.e., leaving this hunk?

IMHO, changing the field name from mt to agm makes the following
patches more clear, by making it easier to see the difference between
sgm and agm packets.

>
>> @@ -147,7 +147,7 @@ struct synaptics_data {
>>
>>       struct serio *pt_port;                  /* Pass-through serio port */
>>
>> -     struct synaptics_hw_state mt;           /* current gesture packet */
>> +     struct synaptics_hw_state agm;          /* last AGM packet */
>>  };
>>
>>  void synaptics_module_init(void);
>> --
>
> Thanks,
> Henrik
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