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From: Joel Ray Holveck <joelh@piquan.org>
Date: Tue, 13 Oct 2020 13:57:27 +0200
Subject: hid-bigendian
===================================================================
---
src/Input/FGHIDEventInput.cxx | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/Input/FGHIDEventInput.cxx b/src/Input/FGHIDEventInput.cxx
index 182d704..6a446de 100644
--- a/src/Input/FGHIDEventInput.cxx
+++ b/src/Input/FGHIDEventInput.cxx
@@ -27,6 +27,8 @@
#include <cassert>
#include <algorithm>
+#include <endian.h>
+
#include <hidapi/hidapi.h>
#include <hidapi/hidparse.h>
@@ -865,6 +867,8 @@ int extractBits(uint8_t* bytes, size_t lengthInBytes, size_t bitOffset, size_t b
uint32_t v = 0;
// this goes from byte alignment to word alignment safely
memcpy((void*) &v, bytes + wholeBytesToSkip, bytesToCopy);
+ // the memcpy arranges v in little-endian order, so swap if needed
+ v = le32toh(v);
// shift down so lowest bit is aligned
v = v >> offsetInByte;
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