From 303f8f2a35b9b19f93249bfcdf446e4d5c43eec6 Mon Sep 17 00:00:00 2001
From: brunoais <brunoaiss@gmail.com>
Date: Thu, 29 Apr 2021 21:36:12 +0100
Subject: [PATCH] Clarify touchpad's available status

---
 touchpad-control.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/touchpad-control.cpp b/touchpad-control.cpp
index f2af8f6..4bd34d1 100644
--- a/touchpad-control.cpp
+++ b/touchpad-control.cpp
@@ -113,8 +113,14 @@ int set_touchpad_state(int enabled) {
             result = EXIT_FAILURE;
         }
         else {
-            // to enable touchpad send "0x03" as feature report nr.7 (0x07) to the touchpad hid device
-            // to disable it send "0x030"
+            // The two rightmost bits control the touchpad status
+            // In order, they are:
+            // 1. LED on, touchpad off
+            // 2. clicks are off
+            // so, the options are:
+            // 0x00 LED on, touchpad off, touchpad click off
+            // 0x01 LED off, touchpad on, touchpad click off
+            // 0x03 LED off, touchpad on, touchpad click on
             char buffer[2] = {0x07, 0x00};
             if (enabled) {
                 buffer[1] = 0x03;