linux-kernel - Re: [PATCH v5 2/3] input: Cypress PS/2 Trackpad psmouse driver

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Date:	Thu, 06 Dec 2012 18:09:04 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	Henrik Rydberg <rydberg@...omail.se>,
	Dudley Du <dudl@...ress.com>, David Solda <dso@...ress.com>,
	Troy Abercrombia <ta@...ress.com>,
	Kyle Fazzari <git@...tus.e4ward.com>,
	Mario Limonciello <mario_limonciello@...l.com>,
	Tim Gardner <tim.gardner@...onical.com>,
	Herton Krzesinski <herton.krzesinski@...onical.com>
Subject: Re: [PATCH v5 2/3] input: Cypress PS/2 Trackpad psmouse driver

On Thu, 2012-12-06 at 00:08 -0800, Dmitry Torokhov wrote:
> [...]

Hi Dmitry-

Thanks again for your review.  The forthcoming PATCH v6 addresses all of
your requests, except for:

> > +	__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
> 
> I do not think it should be marked INPUT_PROP_BUTTONPAD if it has
> physical buttons...

This device (my particular Cypress Trackpad unit anyway) does not have
physical buttons.  The pad is clickable; I think it is a standard
"buttonpad" device.

And just FYI, this issue has been addressed but to answer your question:

> > +
> > +	if (cytp->mode & CYTP_BIT_ABS_MASK) {
> 
> It can't be anything else, can it?

It can: in the case when the mode hasn't been set at all yet (during
detect and reconnect).  I cleaned up the logic of this routine
(cypress_validate_byte) and added explanatory comments.

 -Kamal

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