--- zzzz-none-000/linux-2.6.39.4/include/linux/i2c-dev.h	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/include/linux/i2c-dev.h	2021-11-10 13:38:17.000000000 +0000
@@ -50,6 +50,10 @@
 #define I2C_PEC		0x0708	/* != 0 to use PEC with SMBus */
 #define I2C_SMBUS	0x0720	/* SMBus transfer */
 
+#ifdef CONFIG_GEN3_I2C
+#define I2C_SET_MODE 0x0780
+#endif
+
 
 /* This is the structure as used in the I2C_SMBUS ioctl call */
 struct i2c_smbus_ioctl_data {