X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fi2c.h;h=eb0628a7ecc637ec71e18714105ac814f679f718;hb=55669bfa141b488be865341ed12e188967d11308;hp=1635ee25918fc19ea613d1e8dbcb672075220efb;hpb=d42510a0f58c2583c37c8e9b7548e3a68545863a;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 1635ee25918..eb0628a7ecc 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -20,14 +20,15 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.		     */
 /* ------------------------------------------------------------------------- */
 
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
+/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
    Frodo Looijaard <frodol@dds.nl> */
 
 #ifndef _LINUX_I2C_H
 #define _LINUX_I2C_H
 
-#include <linux/module.h>
 #include <linux/types.h>
+#ifdef __KERNEL__ 
+#include <linux/module.h>
 #include <linux/i2c-id.h>
 #include <linux/mod_devicetable.h>
 #include <linux/device.h>	/* for struct device */
@@ -96,13 +97,13 @@ extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
                                      u8 command, u16 value);
 extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
 				      u8 command, u8 length,
-				      u8 *values);
+				      const u8 *values);
 /* 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);
+					  const u8 *values);
 
 /*
  * A driver is capable of handling one or more physical devices present on
@@ -192,6 +193,8 @@ struct i2c_algorithm {
 	   to NULL. If an adapter algorithm can do SMBus access, set 
 	   smbus_xfer. If set to NULL, the SMBus protocol is simulated
 	   using common I2C messages */
+	/* master_xfer should return the number of messages successfully
+	   processed, or a negative value on error */
 	int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 
 	                   int num);
 	int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 
@@ -354,6 +357,7 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
 {
 	return adap->nr;
 }
+#endif /* __KERNEL__ */
 
 /*
  * I2C Message - used for pure i2c transaction, also from /dev interface
@@ -469,6 +473,7 @@ union i2c_smbus_data {
 #define I2C_SMBUS	0x0720	/* SMBus-level access */
 
 /* ----- I2C-DEV: char device interface stuff ------------------------- */
+#ifdef __KERNEL__
 
 #define I2C_MAJOR	89		/* Device major number		*/
 
@@ -646,5 +651,5 @@ static unsigned short *forces[] = { force, force_##chip1,		\
 				    force_##chip6, force_##chip7,	\
 				    force_##chip8, NULL };		\
 I2C_CLIENT_INSMOD_COMMON
-
+#endif /* __KERNEL__ */
 #endif /* _LINUX_I2C_H */