Content-Disposition: inline; filename=i2c-add-i2c-block-write.patch
Resurrect i2c_smbus_write_i2c_block_data. Benjamin Herrenschmidt
needs it.
Signed-off-by: Jean Delvare <khali at linux-fr.org>
Cc: Benjamin Herrenschmidt <benh at kernel.crashing.org>
---
drivers/i2c/i2c-core.c | 15 +++++++++++++++
include/linux/i2c.h | 3 +++
2 files changed, 18 insertions(+)
--- linux-2.6.15-git.orig/drivers/i2c/i2c-core.c 2006-01-08 10:55:58.000000000 +0100
+++ linux-2.6.15-git/drivers/i2c/i2c-core.c 2006-01-08 11:17:57.000000000 +0100
@@ -948,6 +948,20 @@
}
}
+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,
@@ -1152,6 +1166,7 @@
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 at tk.uni-linz.ac.at>");
MODULE_DESCRIPTION("I2C-Bus main module");
--- linux-2.6.15-git.orig/include/linux/i2c.h 2006-01-08 10:56:08.000000000 +0100
+++ linux-2.6.15-git/include/linux/i2c.h 2006-01-08 11:02:00.000000000 +0100
@@ -100,6 +100,9 @@
/* Returns the number of read bytes */
extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
u8 command, u8 *values);
+extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
+ u8 command, u8 length,
+ u8 *values);
/*
* A driver is capable of handling one or more physical devices present on
--
Jean Delvare
