Re: [PATCH] Revert "HID: magicmouse: Set multi-touch keybits for Magic Mouse"

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On Jun 15 2017 or thereabouts, Daniel Stone wrote:
> Setting these bits causes libinput to fail to initialize the device;
> setting BTN_TOUCH and BTN_TOOL_FINGER causes it to treat the mouse as a
> touchpad, and it then refuses to continue when it discovers ABS_X is not
> set.
> 
> This breaks all known Wayland compositors, as well as Xorg when the
> libinput driver is being used.

Right. The revert is required as this is a regression.

Acked-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>

However, I wonder if we should not find a better solution than having
this hybrid device that is part touchpad, part mouse.

Cheers,
Benjamin

> 
> This reverts commit f4b65b9563216b3e01a5cc844c3ba68901d9b195.
> 
> Signed-off-by: Daniel Stone <daniels@xxxxxxxxxxxxx>
> Cc: Che-Liang Chiou <clchiou@xxxxxxxxxxxx>
> Cc: Thierry Escande <thierry.escande@xxxxxxxxxxxxx>
> Cc: Jiri Kosina <jkosina@xxxxxxx>
> Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> ---
>  drivers/hid/hid-magicmouse.c | 15 +++++++--------
>  1 file changed, 7 insertions(+), 8 deletions(-)
> 
> Jiri, can you please get this into 4.12 final?
> 
> diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
> index 1d6c997b3001..20b40ad26325 100644
> --- a/drivers/hid/hid-magicmouse.c
> +++ b/drivers/hid/hid-magicmouse.c
> @@ -349,7 +349,6 @@ static int magicmouse_raw_event(struct hid_device *hdev,
>  
>  	if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
>  		magicmouse_emit_buttons(msc, clicks & 3);
> -		input_mt_report_pointer_emulation(input, true);
>  		input_report_rel(input, REL_X, x);
>  		input_report_rel(input, REL_Y, y);
>  	} else { /* USB_DEVICE_ID_APPLE_MAGICTRACKPAD */
> @@ -389,16 +388,16 @@ static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hd
>  		__clear_bit(BTN_RIGHT, input->keybit);
>  		__clear_bit(BTN_MIDDLE, input->keybit);
>  		__set_bit(BTN_MOUSE, input->keybit);
> +		__set_bit(BTN_TOOL_FINGER, input->keybit);
> +		__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
> +		__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
> +		__set_bit(BTN_TOOL_QUADTAP, input->keybit);
> +		__set_bit(BTN_TOOL_QUINTTAP, input->keybit);
> +		__set_bit(BTN_TOUCH, input->keybit);
> +		__set_bit(INPUT_PROP_POINTER, input->propbit);
>  		__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
>  	}
>  
> -	__set_bit(BTN_TOOL_FINGER, input->keybit);
> -	__set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
> -	__set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
> -	__set_bit(BTN_TOOL_QUADTAP, input->keybit);
> -	__set_bit(BTN_TOOL_QUINTTAP, input->keybit);
> -	__set_bit(BTN_TOUCH, input->keybit);
> -	__set_bit(INPUT_PROP_POINTER, input->propbit);
>  
>  	__set_bit(EV_ABS, input->evbit);
>  
> -- 
> 2.11.0
> 
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