Makefile

# For building for the current running version of Linux
TARGET		:= $(shell uname -r)
HOME=$(shell pwd)
# Or for a specific version
#TARGET		:= 2.6.33.5
KERNEL_MODULES	:= /lib/modules/$(TARGET)

ifneq ("","$(wildcard /usr/src/linux-headers-$(TARGET)/*)")
# Ubuntu
KERNEL_BUILD    := /usr/src/linux-headers-$(TARGET)
else
ifneq ("","$(wildcard /usr/src/kernels/$(TARGET)/*)")
# Fedora
KERNEL_BUILD    := /usr/src/kernels/$(TARGET)
else
KERNEL_BUILD    := $(KERNEL_MODULES)/build
endif
endif

#SYSTEM_MAP     := $(KERNEL_BUILD)/System.map
ifneq ("","$(wildcard /boot/System.map-$(TARGET))")
SYSTEM_MAP      := /boot/System.map-$(TARGET)
else
# Arch
SYSTEM_MAP      := /proc/kallsyms
endif

DRIVER := nct6775

# Directory below /lib/modules/$(TARGET)/kernel into which to install
# the module:
MOD_SUBDIR = drivers/hwmon

obj-m	:= $(DRIVER).o

MAKEFLAGS += --no-print-directory

.PHONY: all install modules modules_install clean

all: modules

# Targets for running make directly in the external module directory:

modules clean:
	@$(MAKE) -C $(KERNEL_BUILD) M=$(CURDIR) $@ EXTRA_CFLAGS=-g

install: modules_install

modules_install:
	cp $(DRIVER).ko $(KERNEL_MODULES)/kernel/$(MOD_SUBDIR)
	depmod -a -F $(SYSTEM_MAP) $(TARGET)