1 files changed, 25 insertions, 0 deletions
diff --git a/src/i2c.h b/src/i2c.h
new file mode 100644
index 0000000..c5d5034
--- /dev/null
+++ b/src/i2c.h
@@ -0,0 +1,25 @@
+#ifndef __I2C_H
+#define __I2C_H
+
+#include <stddef.h>
+#include <stdbool.h>
+
+#define I2C_WRITE   0
+#define I2C_READ    1
+
+//higher level functions write registers
+//TODO rename if we end up only using for screen
+void i2c_write_reg(uint8_t device_addr, uint8_t device_reg, uint8_t value);
+void i2c_write_reg_multi(uint8_t device_addr, uint8_t device_reg, size_t len, uint8_t *values);
+
+//for drivers with weird i2c processes
+void i2c_send(uint8_t byte);
+uint8_t i2c_recv();
+void i2c_stop();
+void i2c_start(uint8_t addr, bool rw);
+uint8_t i2c_read_reg_addr16(uint8_t device, uint16_t addr);
+
+void i2c_init();
+
+
+#endif