linux-kernel - Re: [PATCH] HID: multitouch: fix name of Stylus input devices

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Message-ID: <pq18q556-n54p-0ro6-7no8-8q0rp0237on3@xreary.bet>
Date: Wed, 15 Oct 2025 17:17:53 +0200 (CEST)
From: Jiri Kosina <jikos@...nel.org>
To: Thadeu Lima de Souza Cascardo <cascardo@...lia.com>
cc: Benjamin Tissoires <bentiss@...nel.org>, 
    Mika Westerberg <mika.westerberg@...ux.intel.com>, 
    Tero Kristo <tero.kristo@...ux.intel.com>, linux-input@...r.kernel.org, 
    linux-kernel@...r.kernel.org, kernel-dev@...lia.com
Subject: Re: [PATCH] HID: multitouch: fix name of Stylus input devices

On Wed, 8 Oct 2025, Thadeu Lima de Souza Cascardo wrote:

> HID_DG_PEN devices should have a suffix of "Stylus", as pointed out by
> commit c0ee1d571626 ("HID: hid-input: Add suffix also for HID_DG_PEN").
> However, on multitouch devices, these suffixes may be overridden. Before
> that commit, HID_DG_PEN devices would get the "Stylus" suffix, but after
> that, multitouch would override them to have an "UNKNOWN" suffix. Just add
> HID_DG_PEN to the list of non-overriden suffixes in multitouch.
> 
> Before this fix:
> 
> [    0.470981] input: ELAN9008:00 04F3:2E14 UNKNOWN as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN9008:00/0018:04F3:2E14.0001/input/input8
> ELAN9008:00 04F3:2E14 UNKNOWN
> 
> After this fix:
> 
> [    0.474332] input: ELAN9008:00 04F3:2E14 Stylus as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-16/i2c-ELAN9008:00/0018:04F3:2E14.0001/input/input8
> 
> ELAN9008:00 04F3:2E14 Stylus
> 
> Fixes: c0ee1d571626 ("HID: hid-input: Add suffix also for HID_DG_PEN")
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@...lia.com>

Applied, thanks.

-- 
Jiri Kosina
SUSE Labs