i2c: Add IDs to adapters

IDs have been defined but not used by most of the I2C adapters.
By having a unique ID, clients can check for correct connection
during probe.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

drivers/i2c/busses/scx200_i2c.c

@@ -81,6 +81,7 @@ static struct i2c_algo_bit_data scx200_i2c_data = {
 
 static struct i2c_adapter scx200_i2c_ops = {
 	.owner		   = THIS_MODULE,
+	.id		   = I2C_HW_B_SCX200,
 	.algo_data	   = &scx200_i2c_data,
 	.name	= "NatSemi SCx200 I2C",
 };