plippo / twofing Goto Github PK

I am using Raspberry Pi OS on a Surface RT (bullseye + x11).

When I use twofing, I can emulate right click with two fingers.

However, when I try to scroll in Chromium, it selects text instead of scrolling.

When twofing is not running, I can comfortably scroll with the touch screen in Chromium.

How to restore the normal scrolling behavior in browser while using twofing?

Usually a user wants to aim at something directly.
(Example adding a waypoint on a chartplotter)
So having --click=first default makes more sense.

Thanks

I think all you need instead of all current udev rules is:

SUBSYSTEMS=="input", KERNEL=="event[0-9]*", ENV{ID_INPUT_TOUCHSCREEN}=="1", SYMLINK+="touchscreen0"
SUBSYSTEMS=="input", KERNEL=="event[0-9]*", ENV{ID_INPUT_TOUCHSCREEN}=="1", SYMLINK+="twofingtouch", RUN+="/bin/chmod a+r /dev/twofingtouch"

Since the new driver for the official Raspberry Pi touchscreen was introduced with this patch the touchscreen no longer reports as "FT5406 memory based driver" but as "raspberrypi-ts" instead. To add support for this new driver I suggest adding these lines into the raspberry pi touchscreen rules into rules/70-touchscreen-raspberrypi.rules

# add support for raspberrypi-ts driver introduced by kernel 4.21
ACTION=="add",KERNEL=="event*",ATTRS{name}=="raspberrypi-ts",SYMLINK+="twofingtouch",MODE="0440"
KERNEL=="event*",ATTRS{name}=="raspberrypi-ts",SYMLINK+="twofingtouch",MODE="0440"

or creating a new file with these rules.

I work on a linux distribution focusing on the raspberry pi, which packages the twofing project as an installable package.
See package here: https://github.com/GenPi64/genpi64-overlay/blob/master/x11-misc/twofing/twofing-0.1.2-r2.ebuild

Turns out we're about a decade out of date.

Can you make a new release here on github? Either a tag in git, or using the github "Releases" feature?
That would enable us to update our package to the newest version easily. We're reluctant to do direct git checkouts for a specific commit.

Attempting to set this up with a raspberry pi touchscreen, It seems to transfer all input to the top left corner while twofing is running (but works fine otherwise). Before finding this repo, I did attempt to follow the instructions here, if that might have messed it up?

If it'd be easier, is there any way to manually scale the motion as needed?

twofing, the two-fingered daemon
Version 0.1.5.20200913

Input device name: "raspberrypi-ts"
XInput device id is 6.
XInput device id for calibration is 6.
Start calibration
No calibration data found, use default values.
No valid axis inversion data found, assuming no inversion.
No valid axes swap data found, assuming no swap.
Calibration: MinX: 0; MaxX: 65535; MinY: 0; MaxY: 65535
Invert X Axis: No
Invert Y Axis: No
Swap Axes: No
Calibration Matrix: 	1.000000	0.000000	0.000000
                    	0.000000	1.000000	0.000000
Grab Result: 0
Reading input from device ... (interrupt to exit)

I'm using Raspberry Pi 4(64bit RasPi OS) with Raspad 3.

In my environment, twofing only works with web-browser. How to make it work anywhere?

See project link on right hand side

twofing seems capable of entering endless loops

I see CPU constantly at 25% consumed by twofing.

Thanks,
--MG