linux-kernel - Re: [PATCH 4/9 v4] Input: synaptics

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20110822042822.GA23010@core.coreip.homeip.net>
Date:	Sun, 21 Aug 2011 21:28:22 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Daniel Kurtz <djkurtz@...omium.org>
Cc:	chase.douglas@...onical.com, rydberg@...omail.se,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	olofj@...omium.org, chris@...bagwell.com
Subject: Re: [PATCH 4/9 v4] Input: synaptics - add image sensor support

On Sat, Aug 20, 2011 at 03:07:41PM +0800, Daniel Kurtz wrote:
> On Sat, Aug 20, 2011 at 6:22 AM, Dmitry Torokhov
> <dmitry.torokhov@...il.com> wrote:
> > Hi Daniel,
> >
> > On Thu, Aug 18, 2011 at 07:28:03PM +0800, Daniel Kurtz wrote:
> >> @@ -558,6 +626,11 @@ static void synaptics_process_packet(struct psmouse *psmouse)
> >>       if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
> >>               return;
> >>
> >> +     if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
> >> +             synaptics_image_sensor_process(psmouse, &hw);
> >> +             return;
> >> +     }
> >> +
> >
> > So what about the rest of the SYnaptics processing (wheel, additional
> > buttons, etc)?  Are we sure that touchpads with image sensors will never
> > implement them?
> >
> > --
> > Dmitry
> >
> 
> All image sensors that I am aware of are clickpads, with one button
> integrated under the pad, which is reported as the middle button.
> 
> We could report right, middle, up, down, and ext_buttons (scroll is
> not possible, since w=2;buf[1] is used for x for devices that send agm
> packets).
> However, I have no way of knowing if this added complexity is
> necessary

I would prefer us supporting full protocol so if some vendor does add
additional buttons we have everything in place.

> , nor any way of testing it.

As long as your case still works I think it will be good enough.

Thanks.

-- 
Dmitry
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/