linux-kernel - Re: [PATCH] HID: multitouch: enable trackstick of Asus ExpertBook B2502

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Message-ID: <CAO-hwJ+4zit=65oS6Q9aBp3GZiVaOP3f__tcT+1VSRx=1hcxrg@mail.gmail.com>
Date:   Wed, 18 Jan 2023 10:49:55 +0100
From:   Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:     Jiri Kosina <jikos@...nel.org>
Cc:     linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH] HID: multitouch: enable trackstick of Asus ExpertBook B2502

On Mon, Dec 19, 2022 at 11:55 AM Benjamin Tissoires
<benjamin.tissoires@...hat.com> wrote:
>
> This device has a trackstick that is sent through the same HID device
> than the touchpad.
> Unfortunately there are 2 mice attached to that device descriptor, with
> the first one for the touchpad when the second is for the trackstick.
>
> Force all devices to be exported.
>
> Cc: stable@...r.kernel.org # 5.8+
> Link: https://bugzilla.redhat.com/show_bug.cgi?id=2154204
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>

FTR, this patch was already taken through
4eab1c2fe06c98a4dff258dd64800b6986c101e9, so we can safely ditch it.

Cheers,
Benjamin

> ---
>  drivers/hid/hid-multitouch.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
> index 91a4d3fc30e0..91ac72b32d45 100644
> --- a/drivers/hid/hid-multitouch.c
> +++ b/drivers/hid/hid-multitouch.c
> @@ -1860,6 +1860,12 @@ static const struct hid_device_id mt_devices[] = {
>                         USB_VENDOR_ID_ASUSTEK,
>                         USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) },
>
> +       /* Asus ExpertBook with trackstick */
> +       { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT,
> +               HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8,
> +                       USB_VENDOR_ID_ELAN,
> +                       0x3148) },
> +
>         /* Atmel panels */
>         { .driver_data = MT_CLS_SERIAL,
>                 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL,
> --
> 2.38.1
>