[SOLVED] How to build module w83627ehf?

catkin · 12-02-2011, 05:05 AM

Hello

For my Slackware64 13.31 system, now running on an ASUS PBH67-V motherboard including a Nuvoton (formerly Winbond) NCT6776F chip, I need to build module w83627ehf.

The original 2.6.33.4 kernel does not support the core i3 processor now fitted so the kernel is 2.6.38.7, downloaded from Slackware current and built in /home/c/src/linux-2.6.38.7 with the Slackware current config-generic-smp-2.6.38.7-smp (lightly modified to build ext3 and JFS into the kernel to avoid needing initramfs/initrd).

Unfortunately I am neither familiar with building extra modules nor with make files but it looks as if the w83627ehf Makefile assumes the kernel source is in system directories, not a user directory:

Code:

# 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)
# KERNEL_BUILD	:= $(KERNEL_MODULES)/build
KERNEL_BUILD	:= /usr/src/linux-headers-$(TARGET)

#SYSTEM_MAP	:= $(KERNEL_BUILD)/System.map
SYSTEM_MAP	:= /boot/System.map-$(TARGET)

DRIVER := w83627ehf

# 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) $@

install: modules_install

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

What to do? Modify the Makefile? Move the build environment to system directories (I want to keep the standard 2.6.33.4 kernels intact)? Create symlinks from the system directories into the /home/c/src/linux-2.6.38.7 tree? Build a 2.6.39 kernel (includes the w83627ehf driver)?

Modifying the Makefile is favourite but would be non-trivial for me.

The README includes:

Code:

To build and install this driver, execute the following command sequence:

$ make
$ sudo make install

but where should the files (Makefile, lm75.h and w83627ehf.c) be unpacked?

Best

Charles

vulcan59 · 12-02-2011, 05:44 AM

I am assuming you are running your new 2.6.38.7 kernel. Unpack the archive you downloaded and it should create a directory containing all of the files. You can do this in your home directory or anywhere you have write permissions. I think you need to make a change to the makefile. Uncomment line 7 (the first KERNEL_BUILD line) and comment out line 8 (the second KERNEL_BUILD line). then run make followed by make install (as root). It worked for me.

catkin · 12-02-2011, 05:58 AM

Thanks vulcan59

That worked

catkin · 12-02-2011, 06:55 AM

But it may be that w83627ehf is not the right module (clashes with ACPI) and asus_atk0110 should be used instead but not yet able to get lm_sensors working with it. Investigating ...