diff --git a/doc/chips/SUMMARY b/doc/chips/SUMMARY
index aa2a33ae..e0628ea2 100644
--- a/doc/chips/SUMMARY
+++ b/doc/chips/SUMMARY
@@ -219,6 +219,9 @@ ltc1710
 matorb
 	Matrix Orbital LCD displays
 
+pca9540
+	2-channel I2C multiplexer
+
 pcf8574 & pcf8574a
 	Simple eight-bit parallel I/O
 
@@ -264,4 +267,4 @@ This may help identify a chip after doing a 'i2cdump [bus] [address]'.
 
 
 ------------------
-Copyright (c) 2001-2003 The lm_sensors group
+Copyright (c) 2001-2004 The lm_sensors group
diff --git a/kernel/chips/Module.mk b/kernel/chips/Module.mk
index 8d06a37f..094cf7d1 100644
--- a/kernel/chips/Module.mk
+++ b/kernel/chips/Module.mk
@@ -121,6 +121,9 @@ endif
 ifneq ($(shell if grep -q '^CONFIG_SENSORS_MTP008=y' $(LINUX)/.config; then echo 1; fi),1)
 KERNELCHIPSTARGETS += $(MODULE_DIR)/mtp008.o
 endif
+ifneq ($(shell if grep -q '^CONFIG_SENSORS_PCA9540=y' $(LINUX)/.config; then echo 1; fi),1)
+KERNELCHIPSTARGETS += $(MODULE_DIR)/pca9540.o
+endif
 ifneq ($(shell if grep -q '^CONFIG_SENSORS_PCF8574=y' $(LINUX)/.config; then echo 1; fi),1)
 KERNELCHIPSTARGETS += $(MODULE_DIR)/pcf8574.o
 endif