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-rw-r--r--keyboards/crkbd/i2c.h7
1 files changed, 2 insertions, 5 deletions
diff --git a/keyboards/crkbd/i2c.h b/keyboards/crkbd/i2c.h
index c15b6bc50..710662c7a 100644
--- a/keyboards/crkbd/i2c.h
+++ b/keyboards/crkbd/i2c.h
@@ -1,5 +1,4 @@
-#ifndef I2C_H
-#define I2C_H
+#pragma once
#include <stdint.h>
@@ -15,7 +14,7 @@
#define SLAVE_BUFFER_SIZE 0x10
-// i2c SCL clock frequency
+// i2c SCL clock frequency 400kHz
#define SCL_CLOCK 400000L
extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
@@ -45,5 +44,3 @@ extern unsigned char i2c_readNak(void);
extern unsigned char i2c_read(unsigned char ack);
#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
-
-#endif