vserver 1.9.5.x5

[linux-2.6.git] / drivers / i2c / busses / i2c-stub.c

diff --git a/drivers/i2c/busses/i2c-stub.c b/drivers/i2c/busses/i2c-stub.c
index fec0bff..19c805e 100644 (file)
--- a/drivers/i2c/busses/i2c-stub.c
+++ b/drivers/i2c/busses/i2c-stub.c
@@ -28,6 +28,7 @@
 #include <linux/errno.h>
 #include <linux/i2c.h>
 
+static u8  stub_pointer;
 static u8  stub_bytes[256];
 static u16 stub_words[256];
 
@@ -44,6 +45,22 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
                ret = 0;
                break;
 
+       case I2C_SMBUS_BYTE:
+               if (read_write == I2C_SMBUS_WRITE) {
+                       stub_pointer = command;
+                       dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, "
+                                       "wrote 0x%02x.\n",
+                                       addr, command);
+               } else {
+                       data->byte = stub_bytes[stub_pointer++];
+                       dev_dbg(&adap->dev, "smbus byte - addr 0x%02x, "
+                                       "read  0x%02x.\n",
+                                       addr, data->byte);
+               }
+
+               ret = 0;
+               break;
+
        case I2C_SMBUS_BYTE_DATA:
                if (read_write == I2C_SMBUS_WRITE) {
                        stub_bytes[command] = data->byte;
@@ -56,6 +73,7 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
                                        "read  0x%02x at 0x%02x.\n",
                                        addr, data->byte, command);
                }
+               stub_pointer = command + 1;
 
                ret = 0;
                break;
@@ -87,8 +105,8 @@ static s32 stub_xfer(struct i2c_adapter * adap, u16 addr, unsigned short flags,
 
 static u32 stub_func(struct i2c_adapter *adapter)
 {
-       return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE_DATA |
-               I2C_FUNC_SMBUS_WORD_DATA;
+       return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
+               I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA;
 }
 
 static struct i2c_algorithm smbus_algorithm = {