From 4b2ee1ccea4de1cb7dffae48211320e6b0f4de9c Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Sun, 29 May 2016 15:29:06 -0500
Subject: [PATCH] Whoops

---
 avr/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/avr/main.c b/avr/main.c
index df5e0a8..eb93148 100644
--- a/avr/main.c
+++ b/avr/main.c
@@ -70,7 +70,7 @@ ISR(TIMER0_COMPB_vect) {
  * SPI byte receipt interrupt vector
  */
 ISR(SPI_STC_vect) {
-    uart_putchar(SPDR);
+    uart_putchar(SPDR, NULL);
 
     if (buffer.cur < buffer.read) {
         SPDR = buffer.data[buffer.cur++];