From 83469886044b20f6388e9bb3311cbb284f77a662 Mon Sep 17 00:00:00 2001
From: Michal Szafranski <szafranski@gmail.com>
Date: Sun, 3 Nov 2019 17:40:02 +0100
Subject: [PATCH] fix device type read regression

---
 src/lpf2hub.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lpf2hub.ts b/src/lpf2hub.ts
index 3a76b27..19134c0 100644
--- a/src/lpf2hub.ts
+++ b/src/lpf2hub.ts
@@ -268,7 +268,7 @@ export class LPF2Hub extends Hub {
     private _parsePortMessage (data: Buffer) {
 
         let port = this._getPortForPortNumber(data[3]);
-        const type = data.readUInt16LE(5);
+        const type = data[4] ? data.readUInt16LE(5) : 0;
 
         if (data[4] === 0x01 && this.sendPortInformationRequests) {
             modeInfoDebug(`Port ${this._toHex(data[3])}, type ${this._toHex(type, 4)} (${Consts.DeviceTypeNames[data[5]] || "unknown"})`);