add Debian package sources for resetting USB after resume

Author: benedekkupper

uhk-usb-service/DEBIAN/control

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+Package: uhk-usb-rebind
+Version: 1.0
+Section: utils
+Priority: optional
+Architecture: all
+Maintainer: Benedek Kupper <[email protected]>
+Description: Rebinds UHK USB devices on resume to fix scrolling issues
+  This package provides a script and a systemd service that put both the host and the device
+  into a known good state after resuming from suspend. This is a temporary workaround,
+  until this patch is merged into the Linux kernel:
+  https://lore.kernel.org/linux-input/[email protected]/T/#u

uhk-usb-service/DEBIAN/postinst

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+#!/bin/bash
+systemctl enable uhk-usb-rebind.service

uhk-usb-service/etc/systemd/system/uhk-usb-rebind.service

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+[Unit]
+Description=UHK USB reset after resume
+After=suspend.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/uhk-usb-rebind.sh
+
+[Install]
+WantedBy=suspend.target

uhk-usb-service/usr/local/bin/uhk-usb-rebind.sh

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+#!/bin/bash
+
+declare -a uhk_devices=(
+    "37a8:0001"
+    "37a8:0003"
+    "37a8:0005"
+    "37a8:0007"
+    "37a8:0009"
+)
+
+USB_DRIVER_PATH="/sys/bus/usb/drivers/usb"
+
+for dev in /sys/bus/usb/devices/*; do
+    if [[ -f "$dev/idVendor" && -f "$dev/idProduct" ]]; then
+        VID=$(cat "$dev/idVendor")
+        PID=$(cat "$dev/idProduct")
+        MATCH="${VID}:${PID}"
+
+        for target in "${uhk_devices[@]}"; do
+            if [[ "$MATCH" == "$target" ]]; then
+                DEVNAME=$(basename "$dev")
+
+                if [[ -e "$USB_DRIVER_PATH/unbind" ]]; then
+                    echo "$DEVNAME" | sudo tee "$USB_DRIVER_PATH/unbind"
+                    sleep 1.5
+                    echo "$DEVNAME" | sudo tee "$USB_DRIVER_PATH/bind"
+                    echo "Rebound device: $dev"
+                fi
+            fi
+        done
+    fi
+done