How to make a program that finds id's of xinput devices and sets xinput some settings

Question

I have a G700 mouse connected to my computer. The problem with this mouse in Linux (Ubuntu) is that the sensitivity is very high. I also don\'t like mouse acceleration, so I

Answer 1

I did it like the Answer of Raphael Ahrens but used grep and sed instead of awk and The command is now something like my_script part_of_device_name part_of_property_name_(spaces with \space) value:

#!/bin/sh

DEVICE=$1
PROP=$2
VAL=$3

DEFAULT="Default"

if [ "$DEVICE" = "" ]; then 
    exit 1
fi

if [ "$PROP" = "" ]; then 
    exit 1
fi

if [ "$VAL" = "" ]; then 
    exit 1
fi

devlist=$(xinput --list | grep "$DEVICE" | sed -n 's/.*id=\([0-9]\+\).*/\1/p')

for dev in $devlist
do
    props=$(xinput list-props $dev | grep "$PROP" | grep -v $DEFAULT | sed -n 's/.*(\([0-9]\+\)).*/\1/p')

    for prop in $props
    do
        echo $prop
        xinput set-prop $dev $prop $VAL 
    done 
done

Answer 2

If the device name is always the same, in this case Logitech G700 Laser Mouse, you can search for matching device IDs by running

xinput list --id-only 'Logitech G700 Laser Mouse'

Answer 3

My 2 cents for a Logitech Gaming Mouse G502

#!/bin/sh


for id in `xinput --list|grep 'Logitech Gaming Mouse G502'|perl -ne 'while (m/id=(\d+)/g){print "$1\n";}'`; do
    # echo "setting device ID $id"
    notify-send -t 50000  'Mouse fixed'
    xinput set-prop $id "Device Accel Velocity Scaling" 1
    xinput set-prop $id "Device Accel Constant Deceleration" 3
done 

Answer 4

Currently I am working on a script for a question over at askubuntu.com , which requires something similar, and I thought I'd share the simple python script that does pretty much what this question asks - find device ids and set properties:

The Script

from __future__ import print_function
import subprocess
import sys

def run_cmd(cmdlist):
    """ Reusable function for running shell commands"""
    try:
        stdout = subprocess.check_output(cmdlist)
    except subprocess.CalledProcessError as pserror:
        sys.exit(1)
    else:
        if stdout:
            return stdout.decode().strip()

def list_ids(mouse_name):
    """ Returns list of ids for the same device"""
    while True:
        mouse_ids = []
        for dev_id in run_cmd(['xinput','list','--id-only']).split('\n'):
            if mouse_name in run_cmd(['xinput','list','--name-only',dev_id]):
                mouse_ids.append(dev_id)
        if mouse_ids:
           break
    return mouse_ids

"""dictionary of propery-value pairs"""
props = { 'Device Accel Profile':'-1',
          'Device Accel Constant Deceleration':'2.5',
          'Device Accel Velocity Scaling':'1.0'   }

""" set all property-value pair per each device id
    Uncomment the print function if you wish to know
    which ids have been altered for double-checking
    with xinput list-props"""
for dev_id in list_ids(sys.argv[1]):
    # print(dev_id)
    for prop,value in props.items():
        run_cmd(['xinput','set-prop',dev_id,prop,value]) 

Usage

Provide quoted name of the mouse as first command line argument:

python set_xinput_props.py 'Logitech G700 Laser Mouse'

If everything is OK, script exits silently, with exit status of 0 , or 1 if any xinput command failed. You can uncomment print statement to show which ids are being configured (to later double check with xinput that values are set alright)

How it works:

Essentially, list_ids function lists all device ids , finds those devices that have the same name as user's mouse name and returns a list of those ids. Next we simply loop over each one of them, and of each one we set all the property-value pairs that are defined in props dictionary. Could be done with list of tuples as well, but dictionary is my choice here.

Answer 5

You can do something like the following.

if [ "$SEARCH" = "" ]; then 
    exit 1
fi

ids=$(xinput --list | awk -v search="$SEARCH" \
    '$0 ~ search {match($0, /id=[0-9]+/);\
                  if (RSTART) \
                    print substr($0, RSTART+3, RLENGTH-3)\
                 }'\
     )

for i in $ids
do
    xinput set-prop $i 'Device Accel Profile' -1
    xinput set-prop $i 'Device Accel Constant Deceleration' 2.5
    xinput set-prop $i 'Device Accel Velocity Scaling' 1.0
done

So with this you first find all the IDs which match the search pattern $SEARCH and store them in $ids. Then you loop over the IDs and execute the three xinput commands.

You should make sure that $SEARCH does not match to much, since this could result in undesired behavior.

Answer 6

For the fun of it, same answer, but simpler way to parse and get ids:

for id in $(xinput list | grep 'Logitech USB Receiver' |  grep pointer | cut -d '=' -f 2 | cut -f 1); do xinput --set-button-map $id 3 2 1; done

Took me a while to figure out this can get the ids:

xinput | cut -d '=' -f 2 | cut -f 1