Script to patch the file "transsion_touch.ko" to fix the touchscreen in TWRP. Maybe only applicable for Transsion MT6789 devices. credit: https://github.com/Shivelight

touch_patch.sh

#!/bin/bash

# Set the input file
file="transsion_touch.ko"

# Define patterns for replacement
pattern1='0000004a'
pattern2='patched_get_boot_mode'

# Patching the file
xxd -p "$file" | tr -d '\n' | sed 's/600a40b9/'"$pattern1"'/g' | xxd -r -p > "$file.tmp"
sed -e "0,/tran_tp_get_boot_mode/s/tran_tp_get_boot_mode/$pattern2/" \
    "$file.tmp" > "$file.patched"
rm "$file.tmp"

# Check if patched
if hexdump -ve '/1 "%02x"' "$file.patched" | grep -q "$pattern1" && strings "$file.patched" | grep -q "$pattern2"; then
    echo "Module patched successfully to $file.patched"
else
    echo "Module patching failed"
fi