i2c-algo-pcf: Multi-master lost-arbitration improvement

[safe/jmp/linux-2.6] / include / linux / i2c-algo-pcf.h

diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h
index 7d7045c..74fb6f8 100644 (file)
--- a/include/linux/i2c-algo-pcf.h
+++ b/include/linux/i2c-algo-pcf.h
@@ -19,7 +19,7 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
 /* ------------------------------------------------------------------------- */
 
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
+/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
    Frodo Looijaard <frodol@dds.nl> */
 
 #ifndef _LINUX_I2C_ALGO_PCF_H
@@ -36,9 +36,14 @@ struct i2c_algo_pcf_data {
        /* local settings */
        int udelay;
        int timeout;
+
+       /* Multi-master lost arbitration back-off delay (msecs)
+        * This should be set by the bus adapter or knowledgable client
+        * if bus is multi-mastered, else zero
+        */
+       unsigned long lab_mdelay;
 };
 
 int i2c_pcf_add_bus(struct i2c_adapter *);
-int i2c_pcf_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_PCF_H */