1 files changed, 18 insertions, 0 deletions
diff --git a/commandline/i2c-util.c b/commandline/i2c-util.c
index 3971721..2771a4e 100644
--- a/commandline/i2c-util.c
+++ b/commandline/i2c-util.c
@@ -267,6 +267,24 @@ unsigned char i2c_tx_byte(unsigned char byte)
 	return ack;
 }
 
+unsigned char i2c_rx_byte()
+{
+	signed char i;
+	unsigned char ret = 0;
+
+	set_sda(1);
+	for (i = 7; i >= -1; i--) {
+		set_scl(1);
+		usleep(10);
+		if ((i >= 0) && ( get_status() & (1 << BIT_SDA)))
+			ret |= (1 << i);
+		set_scl(0);
+		usleep(10);
+	}
+
+	return ret;
+}
+
 void i2c_start()
 {
 	set_sda(1);