problem in makefile....

[shariefbe]

Hello,
i am new to linux..i have an error in makefile...actually i want to compile the usbcore module using "make"...but i didnt get the .ko file....the compilation process of "make" is given below...

sharief@sharief-desktop:~/Desktop/drivers/core$ make
make -C /lib/modules/2.6.26/build M=/home/sharief/Desktop/drivers/core modules
make[1]: Entering directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'
Building modules, stage 2.
MODPOST 0 modules
make[1]: Leaving directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'
sharief@sharief-desktop:~/Desktop/drivers/core$

but when i compile the "helloworld" module its working ....its given below

sharief@sharief-desktop:~/Desktop/a$ make
make -C /lib/modules/2.6.26/build M=/home/sharief/Desktop/a modules
make[1]: Entering directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'
CC [M] /home/sharief/Desktop/a/a.o
Building modules, stage 2.
MODPOST 1 modules
CC /home/sharief/Desktop/a/a.mod.o
LD [M] /home/sharief/Desktop/a/a.ko
make[1]: Leaving directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'

what is the problem in the first make file...how to clear that error....i am using Ubuntu 7.10...kernel version 2.6.26

[shariefbe]

This is my makefile:

usbcore-objs := usb.o hub.o hcd.o urb.o message.o driver.o \
config.o file.o buffer.o sysfs.o endpoint.o \
devio.o notify.o generic.o quirks.o

ifeq ($(CONFIG_PCI),y)
usbcore-objs += hcd-pci.o
endif

ifeq ($(CONFIG_USB_DEVICEFS),y)
usbcore-objs += inode.o devices.o
endif

obj-$(CONFIG_USB) += usbcore.o

ifeq ($(CONFIG_USB_DEBUG),y)
EXTRA_CFLAGS += -DDEBUG
endif

all:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

clean:
make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

[shariefbe]

can anyone explain what it is?

CONFIG_PCI
CONFIG_USB_DEVICEFS
CONFIG_USB
CONFIG_USB_DEBUG
EXTRA_CFLAGS += -DDEBUG

Explain this please...or tell the link where it is explained clearly..i didnt find any link in the net...somebody help me

[digvijay.gahlot]

If you have a module called module.ko that is generated from two source
files (called, say, file1.c and file2.c), the correct incantation would be:
obj-m := module.o
module-objs := file1.o file2.o

Check for more details here
http://lwn.net/images/pdf/LDD3/ch02.pdf

[shariefbe]

ya that is am doing..i want to create the usbcore module..for that i am using this below files...i posted my full makefile in the #2...

usbcore-objs := usb.o hub.o hcd.o urb.o message.o driver.o \
config.o file.o buffer.o sysfs.o endpoint.o \
devio.o notify.o generic.o quirks.o

Kindly help me

[digvijay.gahlot]

Don't u think u should have

obj-m := usbcore.o // also in ur makefile

usbcore-objs := usb.o hub.o hcd.o urb.o message.o driver.o \
config.o file.o buffer.o sysfs.o endpoint.o \
devio.o notify.o generic.o quirks.o

[shariefbe]

sorry....i am new to linux....if i ask any stupid thing forgive me..

you told that i have to use "obj-m := usbcore.o"

but i have obj-$(CONFIG_USB) += usbcore.o
is it different?if i have to put your code "obj-m := usbcore.o" in my makefile means where to put that in my makefile...kindly help me...Thanks for your patience reply

[digvijay.gahlot]

obj-$(CONFIG_USB) += usbcore.o

I forgot to see that...
You make file looks correct to me. May be somebody with more knowledge in this could help.

[shariefbe]

ysa ok...somebody know this help me what to do.....

[shariefbe]

Can anyone tell me what is the error in this make :

sharief@sharief-desktop:~/Desktop/drivers/host$ make
make -C /lib/modules/2.6.26/build M=/home/sharief/Desktop/drivers/host modules
make[1]: Entering directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'
CC [M] /home/sharief/Desktop/drivers/host/pci-quirks.o
CC [M] /home/sharief/Desktop/drivers/host/ehci-hcd.o
CC [M] /home/sharief/Desktop/drivers/host/isp116x-hcd.o
CC [M] /home/sharief/Desktop/drivers/host/ohci-hcd.o
CC [M] /home/sharief/Desktop/drivers/host/uhci-hcd.o
CC [M] /home/sharief/Desktop/drivers/host/sl811-hcd.o
CC [M] /home/sharief/Desktop/drivers/host/sl811_cs.o
CC [M] /home/sharief/Desktop/drivers/host/u132-hcd.o
/home/sharief/Desktop/drivers/host/u132-hcd.c:250:30: error: ../misc/usb_u132.h: No such file or directory
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘read_roothub_info’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:432: error: implicit declaration of function ‘usb_ftdi_elan_read_pcimem’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘u132_hcd_monitor_work’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:503: error: implicit declaration of function ‘ftdi_elan_gone_away’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘edset_input’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:587: error: implicit declaration of function ‘usb_ftdi_elan_edset_input’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘edset_setup’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:597: error: implicit declaration of function ‘usb_ftdi_elan_edset_setup’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘edset_single’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:607: error: implicit declaration of function ‘usb_ftdi_elan_edset_single’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘edset_output’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:617: error: implicit declaration of function ‘usb_ftdi_elan_edset_output’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘u132_hcd_configure_input_recv’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:957: error: implicit declaration of function ‘usb_ftdi_elan_edset_empty’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘u132_hcd_endp_work_scheduler’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:1378: error: implicit declaration of function ‘usb_ftdi_elan_edset_flush’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘u132_periodic_reinit’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:1545: error: implicit declaration of function ‘usb_ftdi_elan_write_pcimem’
/home/sharief/Desktop/drivers/host/u132-hcd.c: In function ‘u132_hcd_start’:
/home/sharief/Desktop/drivers/host/u132-hcd.c:1816: error: dereferencing pointer to incomplete type
/home/sharief/Desktop/drivers/host/u132-hcd.c:1818: error: dereferencing pointer to incomplete type
make[2]: *** [/home/sharief/Desktop/drivers/host/u132-hcd.o] Error 1
make[1]: *** [_module_/home/sharief/Desktop/drivers/host] Error 2
make[1]: Leaving directory `/home/sharief/Desktop/kernelroot/linux2/linux-2.6.26'
make: *** [all] Error 2
sharief@sharief-desktop:~/Desktop/drivers/host$