# HG changeset patch
# User Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
# Date 1721045147 14400
#      Mon Jul 15 08:05:47 2024 -0400
# Node ID 4d7c16586245e7021e83709d78ebe4e49c09df0c
# Parent  4c0a39eba5ac267df3edd6cb2de67630c7033bd6
arch: extend i2c_rx_byte to return the status (ATmega48P)

Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>

diff --git a/arch/atmega48p_i2c.h b/arch/atmega48p_i2c.h
--- a/arch/atmega48p_i2c.h
+++ b/arch/atmega48p_i2c.h
@@ -93,12 +93,15 @@
 }
 
 /* return received byte, sends ACK if !last and NACK if last */
-static inline uint8_t i2c_rx_byte(bool last)
+static inline uint8_t i2c_rx_byte(bool last, bool *_sync)
 {
+	bool dummy;
+	bool *sync = _sync ? _sync : &dummy;
+
 	mmregs->twcr = REG_TWCR_TWINT | REG_TWCR_TWEN |
 		(last ? 0 : REG_TWCR_TWEA);
 
-	i2c_sync(last ? I2C_STATUS_MR_DATA_NACK : I2C_STATUS_MR_DATA_ACK);
+	*sync = i2c_sync(last ? I2C_STATUS_MR_DATA_NACK : I2C_STATUS_MR_DATA_ACK);
 
 	return mmregs->twdr;
 }