Hi Zoran,

Thanks, I modified the Makefile:

obj-m := huawei_cdc_ncm.o
Kconfig (obj-y := huawei_cdc_ncm.o)
SRC := $(shell pwd)
all:
$(MAKE) -C $(KERNEL_SRC) M=$(SRC)
modules_install:
$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
clean:
rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c
rm -f Module.markers Module.symvers modules.order
rm -rf .tmp_versions Modules.symvers

but this is the error:

ERROR: huawei-1.1-r0 do_configure: oe_runmake failed
ERROR: huawei-1.1-r0 do_configure: Function failed: do_configure (log file is located at /home/kerenyiz/oe-core/build/tmp-glibc/work/barix_ipam400-oe-linux-gnueabi/huawei/1.1-r0/temp/log.do_configure.4488)
ERROR: Logfile of failure stored in: /home/kerenyiz/oe-core/build/tmp-glibc/work/barix_ipam400-oe-linux-gnueabi/huawei/1.1-r0/temp/log.do_configure.4488
Log data follows:
| DEBUG: Executing shell function do_configure
| NOTE: make KERNEL_SRC=/home/kerenyiz/oe-core/build/tmp-glibc/work-shared/barix-ipam400/kernel-source clean
| ERROR: oe_runmake failed
| Makefile:2: *** empty variable name.  Stop.
| ERROR: Function failed: do_configure (log file is located at /home/kerenyiz/oe-core/build/tmp-glibc/work/barix_ipam400-oe-linux-gnueabi/huawei/1.1-r0/temp/log.do_configure.4488)
ERROR: Task (/home/kerenyiz/oe-core/build/../stuff/meta-barix-sdk/recipes-z/kernel-modules/huawei/huawei_1.1.bb:do_configure) failed with exit code '1'
NOTE: Tasks Summary: Attempted 3880 tasks of which 3873 didn't need to be rerun and 1 failed.

On Thu, 7 Jan 2021 at 16:03, Zoran Stojsavljevic <zoran.stojsavljevic@gmail.com> wrote:
Hello Zoltan,

> root@barix-ipam400:~# insmod /lib/modules/4.10.0/extra/huawei_cdc_ncm.ko
> insmod: can't insert '/lib/modules/4.10.0/extra/huawei_cdc_ncm.ko': unknown symbol in module, or unknown parameter

Please, try to set Kconfig (obj-y := huawei_cdc_ncm.o) to y, I guess
99.9% that the kernel compilation (actually, driver compilation) will
pass.

I think YOCTO (recipe) behaves perfectly correctly.

Other approach: try to compile the same module with Makefile above on
the target.

(my two cent thoughts)

Zoran
_______

On Thu, Jan 7, 2021 at 2:46 PM Zoltan Kerenyi Nagy
<kerenyi.nagy.zoltan@gmail.com> wrote:
>
> Hi Folks,
>
> I bitbaked a Huawei E3372h driver into the distro with this recipe file:
>
> SUMMARY = "Huawei Stick kernel module"
> LICENSE = "CLOSED"
>
> inherit module
>
> SRC_URI = "file://Makefile \
>            file://huawei_cdc_ncm.c \
>           "
>
> S = "${WORKDIR}"
>
> The makefile looks like this:
>
> obj-m := huawei_cdc_ncm.o
>
> SRC := $(shell pwd)
>
> all:
> $(MAKE) -C $(KERNEL_SRC) M=$(SRC)
>
> modules_install:
> $(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
>
> clean:
> rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c
> rm -f Module.markers Module.symvers modules.order
> rm -rf .tmp_versions Modules.symvers
>
> The source file is the one that matches the kernel:
>
> https://elixir.bootlin.com/linux/v4.0/source/drivers/net/usb/huawei_cdc_ncm.c
>
> I included this into the conf file:
> KERNEL_MODULE_AUTOLOAD += "lte"KERNEL_MODULE_PROBECONF += "lte"huawei_cdc_ncm = "options lte iProduct=E3372h iManufacturer=Huawei"
>
> Bitbake runs without error, however when I insert the SD card into the hardware ( barix ipam 400)
> and boot the hardware this is the error message:
>
> root@barix-ipam400:~# insmod /lib/modules/4.10.0/extra/huawei_cdc_ncm.ko
> insmod: can't insert '/lib/modules/4.10.0/extra/huawei_cdc_ncm.ko': unknown symbol in module, or unknown parameter
>
> To me it looks like that there was an error during the bitbake, or the header files included in the driver doesn't match the kernel.
>
> Do you have any idea how to procede?
>
> Thanks,
>
>
>
> --
> Zolee
>
>

--
Zolee