From 8ef9bb3d7bd026b57a8568030d8992644c9b8de8 Mon Sep 17 00:00:00 2001
From: Sandeep Mistry <s.mistry@arduino.cc>
Date: Fri, 27 May 2016 11:21:34 -0400
Subject: [PATCH] Make return value of USBDeviceClass::send the bytes sent
---
cores/arduino/USB/USBCore.cpp | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/cores/arduino/USB/USBCore.cpp b/cores/arduino/USB/USBCore.cpp
index 09cfa6fe..8d83b9df 100644
--- a/cores/arduino/USB/USBCore.cpp
+++ b/cores/arduino/USB/USBCore.cpp
@@ -605,6 +605,7 @@ uint8_t USBDeviceClass::armRecv(uint32_t ep)
// Blocking Send of data to an endpoint
uint32_t USBDeviceClass::send(uint32_t ep, const void *data, uint32_t len)
{
+ uint32_t written = 0;
uint32_t length = 0;
if (!_usbConfiguration)
@@ -675,10 +676,11 @@ uint32_t USBDeviceClass::send(uint32_t ep, const void *data, uint32_t len)
while (!usbd.epBank1IsTransferComplete(ep)) {
; // need fire exit.
}
+ written += length;
len -= length;
data = (char *)data + length;
}
- return len;
+ return written;
}
uint32_t USBDeviceClass::armSend(uint32_t ep, const void* data, uint32_t len)
--
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