1 files changed, 60 insertions, 0 deletions
diff --git a/include/qhy/i2c.h b/include/qhy/i2c.h
new file mode 100644
index 0000000..0861239
--- /dev/null
+++ b/include/qhy/i2c.h
@@ -0,0 +1,60 @@
+/*___________________________________________________
+ |  _____                       _____ _ _       _    |
+ | |  __ \                     |  __ (_) |     | |   |
+ | | |__) |__ _ __   __ _ _   _| |__) || | ___ | |_  |
+ | |  ___/ _ \ '_ \ / _` | | | |  ___/ | |/ _ \| __| |
+ | | |  |  __/ | | | (_| | |_| | |   | | | (_) | |_  |
+ | |_|   \___|_| |_|\__, |\__,_|_|   |_|_|\___/ \__| |
+ |                   __/ |                           |
+ |  GNU/Linux based |___/  Multi-Rotor UAV Autopilot |
+ |___________________________________________________|
+  
+ Threadsafe Linux I2C Interface
+
+ Copyright (C) 2013 Tobias Simon, Ilmenau University of Technology
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details. */
+
+
+#ifndef __I2C_H__
+#define __I2C_H__
+
+
+#include <stdint.h>
+#include <stddef.h>
+
+
+/* bus type definition: */
+typedef int i2c_bus_t;
+
+
+/* device type definition: */
+typedef struct
+{
+   i2c_bus_t *bus;
+   uint8_t addr;
+}
+i2c_dev_t;
+
+
+int i2c_bus_open(i2c_bus_t *bus, char *path);
+int i2c_bus_close(i2c_bus_t *bus);
+void i2c_dev_init(i2c_dev_t *dev, i2c_bus_t *bus, uint8_t addr);
+int i2c_xfer(i2c_dev_t *dev, uint8_t len_wr, uint8_t *wr_data, uint8_t len_rd, uint8_t *rd_data);
+int i2c_write(i2c_dev_t *dev, uint8_t val);
+int i2c_write_reg(i2c_dev_t *dev, uint8_t reg, uint8_t val);
+int i2c_read(i2c_dev_t *dev);
+int i2c_read_reg(i2c_dev_t *dev, uint8_t reg);
+int i2c_read_block_reg(i2c_dev_t *dev, uint8_t reg, uint8_t *buf, size_t len);
+
+
+#endif /* __I2C_H__ */
+