[PATCH] I2C: Resurrect i2c_smbus_write_i2c_block_data.

[pandora-kernel.git] / drivers / i2c / i2c-core.c

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 0ce58b5..1a2c9ab 100644 (file)
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -946,6 +946,20 @@ s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command, u8 *val
        }
 }
 
+s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, u8 command,
+                                  u8 length, u8 *values)
+{
+       union i2c_smbus_data data;
+
+       if (length > I2C_SMBUS_BLOCK_MAX)
+               length = I2C_SMBUS_BLOCK_MAX;
+       data.block[0] = length;
+       memcpy(data.block + 1, values, length);
+       return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
+                             I2C_SMBUS_WRITE, command,
+                             I2C_SMBUS_I2C_BLOCK_DATA, &data);
+}
+
 /* Simulate a SMBus command using the i2c protocol 
    No checking of parameters is done!  */
 static s32 i2c_smbus_xfer_emulated(struct i2c_adapter * adapter, u16 addr, 
@@ -1150,6 +1164,7 @@ EXPORT_SYMBOL(i2c_smbus_read_word_data);
 EXPORT_SYMBOL(i2c_smbus_write_word_data);
 EXPORT_SYMBOL(i2c_smbus_write_block_data);
 EXPORT_SYMBOL(i2c_smbus_read_i2c_block_data);
+EXPORT_SYMBOL(i2c_smbus_write_i2c_block_data);
 
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus main module");