linux-kernel - Re: [PATCH] HID: Elecom: Add support for ELECOM M-XT3DRBK (018C)

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Message-ID: <9s9q8382-97q3-989p-4924-s46r23p5q3pr@xreary.bet>
Date: Wed, 7 Jan 2026 22:01:52 +0100 (CET)
From: Jiri Kosina <jikos@...nel.org>
To: Arnoud Willemsen <mail@...thium.com>
cc: bentiss@...nel.org, linux-input@...r.kernel.org, 
    linux-kernel@...r.kernel.org
Subject: Re: [PATCH] HID: Elecom: Add support for ELECOM M-XT3DRBK (018C)

On Sun, 7 Dec 2025, Arnoud Willemsen wrote:

> Wireless/new version of the Elecom trackball mouse M-XT3DRBK has a
> product id that differs from the existing M-XT3DRBK.
> The report descriptor format also seems to have changed and matches
> other (newer?) models instead (except for six buttons instead of eight).
> This patch follows the same format as the patch for the M-XT3URBK (018F)
> by Naoki Ueki (Nov 3rd 2025) to enable the sixth mouse button.
> 
> dmesg output:
> [  292.074664] usb 1-2: new full-speed USB device number 7 using xhci_hcd
> [  292.218667] usb 1-2: New USB device found, idVendor=056e, idProduct=018c, bcdDevice= 1.00
> [  292.218676] usb 1-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [  292.218679] usb 1-2: Product: ELECOM TrackBall Mouse
> [  292.218681] usb 1-2: Manufacturer: ELECOM
> 
> usbhid-dump output:
> 001:006:000:DESCRIPTOR         1765072638.050578
>  05 01 09 02 A1 01 09 01 A1 00 85 01 05 09 19 01
>  29 05 15 00 25 01 95 08 75 01 81 02 95 01 75 00
>  81 01 05 01 09 30 09 31 16 00 80 26 FF 7F 75 10
>  95 02 81 06 C0 A1 00 05 01 09 38 15 81 25 7F 75
>  08 95 01 81 06 C0 A1 00 05 0C 0A 38 02 95 01 75
>  08 15 81 25 7F 81 06 C0 C0 06 01 FF 09 00 A1 01
>  85 02 09 00 15 00 26 FF 00 75 08 95 07 81 02 C0
>  05 0C 09 01 A1 01 85 05 15 00 26 3C 02 19 00 2A
>  3C 02 75 10 95 01 81 00 C0 05 01 09 80 A1 01 85
>  03 19 81 29 83 15 00 25 01 95 03 75 01 81 02 95
>  01 75 05 81 01 C0 06 BC FF 09 88 A1 01 85 04 95
>  01 75 08 15 00 26 FF 00 19 00 2A FF 00 81 00 C0
>  06 02 FF 09 02 A1 01 85 06 09 02 15 00 26 FF 00
>  75 08 95 07 B1 02 C0
> 
> Signed-off-by: Arnoud Willemsen <mail@...thium.com>

Applied to hid.git#for-6.19/upstream-fixes, thanks.

-- 
Jiri Kosina
SUSE Labs