From 1db1c053d1cf6e4b4be8e31d9066a9b0c42f1c75 Mon Sep 17 00:00:00 2001
From: Frederik Aalund <fpa@sbtinstruments.com>
Date: Wed, 12 Aug 2020 16:55:39 +0200
Subject: [PATCH] Fix off-by-one in ioctl_EVIOCG_bits

This bug caused values at the end of the list to not be reported back.

Example: On my system, SW_PEN_INSERTED (0x0f) is the last switch constant. That is,
SW_MAX=SW_PEN_INSERTED. Other tools (python-libevdev) correctly reported this switch
as 'set' but python-evdev did not. This commit fixes this issue.
---
 evdev/input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/evdev/input.c b/evdev/input.c
index b09102b..0a7b0d0 100644
--- a/evdev/input.c
+++ b/evdev/input.c
@@ -413,7 +413,7 @@ ioctl_EVIOCG_bits(PyObject *self, PyObject *args)
         return NULL;
 
     PyObject* res = PyList_New(0);
-    for (int i=0; i<max; i++) {
+    for (int i=0; i<=max; i++) {
         if (test_bit(bytes, i)) {
             PyList_Append(res, Py_BuildValue("i", i));
         }