1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
new file mode 100644
index 000000000000..941b786c5732
--- /dev/null
+++ b/include/linux/i2c-algo-pca.h
@@ -0,0 +1,17 @@
+#ifndef _LINUX_I2C_ALGO_PCA_H
+#define _LINUX_I2C_ALGO_PCA_H
+
+struct i2c_algo_pca_data {
+        int  (*get_own)                 (struct i2c_algo_pca_data *adap); /* Obtain own address */
+        int  (*get_clock)               (struct i2c_algo_pca_data *adap);
+        void (*write_byte)              (struct i2c_algo_pca_data *adap, int reg, int val);
+        int  (*read_byte)               (struct i2c_algo_pca_data *adap, int reg);
+        int  (*wait_for_interrupt)      (struct i2c_algo_pca_data *adap);
+};
+
+#define I2C_PCA_ADAP_MAX        16
+
+int i2c_pca_add_bus(struct i2c_adapter *);
+int i2c_pca_del_bus(struct i2c_adapter *);
+
+#endif /* _LINUX_I2C_ALGO_PCA_H */