Rgb matrix fixes, I2C library can now retry if it has failed (#2943)

[qmk_firmware.git] / drivers / avr / i2c_master.h

diff --git a/drivers/avr/i2c_master.h b/drivers/avr/i2c_master.h
new file mode 100755 (executable)
index 0000000..2479d28
--- /dev/null
+++ b/drivers/avr/i2c_master.h
@@ -0,0 +1,22 @@
+/* Library made by: g4lvanix
+ * Github repository: https://github.com/g4lvanix/I2C-master-lib
+ */
+
+#ifndef I2C_MASTER_H
+#define I2C_MASTER_H
+
+#define I2C_READ 0x01
+#define I2C_WRITE 0x00
+
+void i2c_init(void);
+uint8_t i2c_start(uint8_t address);
+uint8_t i2c_write(uint8_t data);
+uint8_t i2c_read_ack(void);
+uint8_t i2c_read_nack(void);
+uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length);
+uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length);
+uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
+uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length);
+void i2c_stop(void);
+
+#endif // I2C_MASTER_H