From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: contacto@bazaes.cl
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Input: synaptics - add LEN2058 to SMBus passlist for ThinkPad E490
Date: Wed, 13 May 2026 14:27:44 -0700 [thread overview]
Message-ID: <agTso46UcMSGaIYx@google.com> (raw)
In-Reply-To: <20260513045749.185969-1-contacto@bazaes.cl>
On Wed, May 13, 2026 at 12:57:44AM -0400, contacto@bazaes.cl wrote:
> From: Nicolás Bazaes <contacto@bazaes.cl>
>
> The Lenovo ThinkPad E490 (PNP ID: LEN2058) has a Synaptics TM3471-020
> touchpad that supports SMBus/RMI4 mode but is not listed in
> smbus_pnp_ids[]. Without this entry, psmouse ignores the
> synaptics_intertouch parameter and falls back to PS/2 mode even when
> explicitly requested.
>
> Adding LEN2058 to the passlist enables RMI4 over SMBus, which provides
> better multitouch support and matches the behavior of similar ThinkPad
> models already in the list (E480/LEN2054, E580/LEN2055).
>
> Tested on ThinkPad E490 with kernel 7.0.5-zen1 and Arch Linux.
>
> Signed-off-by: Nicolás Bazaes <contacto@bazaes.cl>
> Assisted-by: Claude <claude.ai>
Thank you for the patch. From checkpatch.pl:
WARNING: Assisted-by expects 'AGENT_NAME:MODEL_VERSION [TOOL1] [TOOL2]' format
Thanks.
--
Dmitry
next prev parent reply other threads:[~2026-05-13 21:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-13 4:57 [PATCH] Input: synaptics - add LEN2058 to SMBus passlist for ThinkPad E490 contacto
2026-05-13 21:27 ` Dmitry Torokhov [this message]
2026-05-14 1:35 ` [PATCH v2] " contacto
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