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-rw-r--r--cores/arduino/USBCore.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/cores/arduino/USBCore.cpp b/cores/arduino/USBCore.cpp
index 723edb3..efac25e 100644
--- a/cores/arduino/USBCore.cpp
+++ b/cores/arduino/USBCore.cpp
@@ -256,9 +256,7 @@ u8 USB_SendSpace(u8 ep)
LockEP lock(ep);
if (!ReadWriteAllowed())
return 0;
- // subtract 1 from the EP size to never send a full packet,
- // this avoids dealing with ZLP's in USB_Send
- return USB_EP_SIZE - 1 - FifoByteCount();
+ return USB_EP_SIZE - FifoByteCount();
}
// Blocking Send of data to an endpoint