linux-kernel - RE: [PATCH V2] Input: synaptics-rmi4

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

Message-ID:
 <DM4PR03MB61893266BE3A5816EA41A8BCD4BF2@DM4PR03MB6189.namprd03.prod.outlook.com>
Date: Tue, 6 Aug 2024 00:56:48 +0000
From: Derek Cheng <derek.cheng@...synaptics.com>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>, Marge Yang
	<Marge.Yang@...synaptics.com>
CC: "linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Vincent Huang
	<Vincent.huang@...synaptics.com>, David Chiu <David.Chiu@...synaptics.com>,
	Sam Tsai <Sam.Tsai@...aptics.com>
Subject: RE: [PATCH V2] Input: synaptics-rmi4 - Supports to query DPM value.

Thanks Dmitry.

Regards,
Derek
Synaptics

-----Original Message-----
From: Dmitry Torokhov <dmitry.torokhov@...il.com> 
Sent: Tuesday, August 6, 2024 1:32 AM
To: Marge Yang <Marge.Yang@...synaptics.com>
Cc: linux-input@...r.kernel.org; linux-kernel@...r.kernel.org; Vincent Huang <Vincent.huang@...synaptics.com>; David Chiu <David.Chiu@...synaptics.com>; Derek Cheng <derek.cheng@...synaptics.com>; Sam Tsai <Sam.Tsai@...aptics.com>
Subject: Re: [PATCH V2] Input: synaptics-rmi4 - Supports to query DPM value.

CAUTION: Email originated externally, do not click links or open attachments unless you recognize the sender and know the content is safe.


On Mon, Aug 05, 2024 at 08:36:36AM +0000, Marge Yang wrote:
> Newer firmware allows to query touchpad resolution information by 
> reading from resolution register.
> Presence of resolution register is signalled via bit
> 29 of the "register presence" register.
> On devices that lack this resolution register we fall back to using 
> pitch and number of receivers data to calculate size of the sensor.
>
> RMI4 F12 will support to query DPM value on Touchpad.
> When TP firmware doesn't support to report logical and physical value 
> within the Touchpad's HID report.
> We can directly query the DPM value through RMI.
>
> Signed-off-by: Marge Yang <marge.yang@...synaptics.com>
> Signed-off-by: Vincent Huang <Vincent.Huang@...synaptics.com>

Applied, thank you.

--
Dmitry