From f327b5bb35520f2300c7070711d85975615a2f6b Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmx.de>
Date: Sat, 7 May 2022 16:39:21 +0200
Subject: [PATCH] MBMD: fix rs485 device models not recognized

---
 util/modbus/modbus.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/util/modbus/modbus.go b/util/modbus/modbus.go
index dd190e7c7..a861fc452 100644
--- a/util/modbus/modbus.go
+++ b/util/modbus/modbus.go
@@ -244,7 +244,7 @@ func NewDevice(model string, subdevice int) (device meters.Device, err error) {
 // IsRS485 determines if model is a known MBMD rs485 device model
 func IsRS485(model string) bool {
 	for k := range rs485.Producers {
-		if strings.ToUpper(model) == k {
+		if strings.EqualFold(model, k) {
 			return true
 		}
 	}