w1: new driver. DS2431 chip

[akpm@linux-foundation.org: minor fixlets and cleanups]
Signed-off-by: Bernhard Weirich <bernhard.weirich@riedel.net>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h
index 3053133..3ca1b92 100644
--- a/drivers/w1/w1_family.h
+++ b/drivers/w1/w1_family.h
@@ -33,6 +33,7 @@
 #define W1_THERM_DS1822  	0x22
 #define W1_EEPROM_DS2433  	0x23
 #define W1_THERM_DS18B20 	0x28
+#define W1_EEPROM_DS2431	0x2D
 #define W1_FAMILY_DS2760	0x30
 
 #define MAXNAMELEN		32