linux-kernel - Re: [PATCH v2] hid-multitouch: Fix Iiyama ProLite T1931SAW (0eef:0001 again!)

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Date:   Fri, 19 Nov 2021 16:00:45 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Ondrej Zary <linux@...y.sk>
cc:     Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] hid-multitouch: Fix Iiyama ProLite T1931SAW (0eef:0001
 again!)

On Tue, 16 Nov 2021, Ondrej Zary wrote:

> Iiyama ProLite T1931SAW does not work with Linux - input devices are
> created but cursor does not move.
> 
> It has the infamous 0eef:0001 ID which has been reused for various
> devices before.
> 
> It seems to require export_all_inputs = true.
> 
> Hopefully there are no HID devices using this ID that will break.
> It should not break non-HID devices (handled by usbtouchscreen).
> 
> Signed-off-by: Ondrej Zary <linux@...y.sk>
> ---
>  drivers/hid/hid-multitouch.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
> index 3ea7cb1cda84..ac114b76057b 100644
> --- a/drivers/hid/hid-multitouch.c
> +++ b/drivers/hid/hid-multitouch.c
> @@ -1880,6 +1880,11 @@ static const struct hid_device_id mt_devices[] = {
>  		MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH,
>  			USB_DEVICE_ID_CVTOUCH_SCREEN) },
>  
> +	/* eGalax devices (SAW) */
> +	{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
> +		MT_USB_DEVICE(USB_VENDOR_ID_DWAV,
> +			USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER) },
> +
>  	/* eGalax devices (resistive) */
>  	{ .driver_data = MT_CLS_EGALAX,

Applied, thanks Ondrej.

-- 
Jiri Kosina
SUSE Labs