From 905e8dd17fbaec6abeb1457d0379062a5c97c487 Mon Sep 17 00:00:00 2001
From: Eric Jiang <321497+erjiang@users.noreply.github.com>
Date: Sat, 14 Jun 2025 09:02:01 -0700
Subject: [PATCH] Fix endian conversion when reading weight

---
 usbscale.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/usbscale.c b/usbscale.c
index 563a187..e4a8c2f 100644
--- a/usbscale.c
+++ b/usbscale.c
@@ -376,8 +376,10 @@ static int print_scale_data(unsigned char* dat) {
     uint8_t unit   = dat[2];
     // According to the docs, scaling applied to the data as a base ten exponent
     int8_t  expt   = dat[3];
-    // convert to machine order at all times
-    double weight = (double) le16toh(dat[5] << 8 | dat[4]);
+    // combine the little-endian weight bytes without relying on system
+    // endianness. dat[4] is the low byte and dat[5] is the high byte.
+    uint16_t raw_weight = (uint16_t)dat[4] | ((uint16_t)dat[5] << 8);
+    double weight = (double)raw_weight;
     // since the expt is signed, we do not need no trickery
     weight = weight * pow(10, expt);