From 867d83c21536ed7e13f32f2a3a152302e784b742 Mon Sep 17 00:00:00 2001
From: MCUdude <hansibull@gmail.com>
Date: Thu, 20 Oct 2022 12:27:59 +0200
Subject: [PATCH] Print error message if no HID device is connected when using
 hidapi

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

diff --git a/src/usb_hidapi.c b/src/usb_hidapi.c
index 4ad372b1..4ddb80e3 100644
--- a/src/usb_hidapi.c
+++ b/src/usb_hidapi.c
@@ -93,8 +93,10 @@ static int usbhid_open(const char *port, union pinfo pinfo, union filedescriptor
        */
       struct hid_device_info *list, *walk;
       list = hid_enumerate(pinfo.usbinfo.vid, pinfo.usbinfo.pid);
-      if (list == NULL)
-	return -1;
+      if (list == NULL) {
+        pmsg_error("No USB HID devices found\n");
+        return -1;
+      }
 
       walk = list;
       while (walk)