From 75a0197760515c6faedadf705c6d758681880602 Mon Sep 17 00:00:00 2001
From: Michael Gernoth <michael@gernoth.net>
Date: Mon, 23 Aug 2010 09:53:32 +0200
Subject: [PATCH] ignore prescaler bits in i2c status

---
 bmc/i2c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/bmc/i2c.c b/bmc/i2c.c
index c5f587b..6ffa31f 100644
--- a/bmc/i2c.c
+++ b/bmc/i2c.c
@@ -72,7 +72,7 @@ ISR (TWI_vect, ISR_BLOCK)
 	if (i2c_done)
 		TWCR_RESET;
 
-	switch (TW_STATUS) {
+	switch (TW_STATUS & 0xf8) {
 		case TW_SR_SLA_ACK:
 #ifdef DEBUG
 			printf("I2C: Slave 0x%02x adressed\n", TWDR);
@@ -109,7 +109,7 @@ ISR (TWI_vect, ISR_BLOCK)
 
 		default:
 #ifdef DEBUG
-			printf("I2C: Unimplemented status 0x%02x\n", TW_STATUS);
+			printf("I2C: Unimplemented status 0x%02x\n", (TW_STATUS & 0xf8));
 #endif
 			TWCR_RESET;
 			break;
-- 
2.39.5