From 083b9ae7fe345de22df769e88dd88b17b5cbe6ea Mon Sep 17 00:00:00 2001
From: kai-morich <mail@kai-morich.de>
Date: Wed, 15 Mar 2023 07:27:37 +0100
Subject: [PATCH] use correct control index for composite CDC devices with
 non-consecutive interface IDs (#477)

---
 .../com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java b/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
index 580062a..18d62e0 100644
--- a/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
+++ b/usbSerialForAndroid/src/main/java/com/hoho/android/usbserial/driver/CdcAcmSerialDriver.java
@@ -150,7 +150,7 @@ public class CdcAcmSerialDriver implements UsbSerialDriver {
                 UsbInterface usbInterface = mDevice.getInterface(i);
                 if (usbInterface.getInterfaceClass() == UsbConstants.USB_CLASS_COMM) {
                     if(controlInterfaceCount == mPortNumber) {
-                        mControlIndex = i;
+                        mControlIndex = usbInterface.getId();
                         mControlInterface = usbInterface;
                     }
                     controlInterfaceCount++;