[Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Hans-Heinrich Hansen]

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Is someone working on Advantech EIO-IS200-DRIVER (https://github.com/ADVANTECH-Corp/eio-is200-linux-kernel-driver) for buildroot?

Best regards,
Hans

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Re: [Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Peter Korsgaard]

>>>>> "Hans-Heinrich" == Hans-Heinrich Hansen <hhansen@avt-nbg.de> writes:

 > Is someone working on Advantech EIO-IS200-DRIVER
 > (https://github.com/ADVANTECH-Corp/eio-is200-linux-kernel-driver) for
 > buildroot?

Not that I am aware of. What specific issues are you running into
(besides the general issue of a not-so-clear out-of-tree kernel module)?

-- 
Bye, Peter Korsgaard
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Re: [Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Peter Korsgaard]

>>>>> "Hans-Heinrich" == Hans-Heinrich Hansen <hhansen@avt-nbg.de> writes:

Hello Hans,

Please keep Buildroot discussion on the mailing list, thanks.

 > Hi Peter,
 > my problem is indeed the "out-of-tree kernel module". Btw. I've tried
 > it with loadable module support enabled and disabled.

You will need to enable modules support in your kernel in order to build
and load external modules.

 > It seems that the eio-is200 is not used by the buildroot process.
 > I've followed the buildroot instructions. I'm sure that I've made a
 > mistake. Please can you check my attached configuraton files?

For reference, the custom package is:

################################################################################
#
# eio_is200_driver
#
################################################################################

EIO_IS200_DRIVER_VERSION = 082e737c59aa92bba2c29db46a06cdd0e5beb600
EIO_IS200_DRIVER_DEPENDENCIES = linux
EIO_IS200_DRIVER_SITE = $(call github,ADVANTECH-Corp,eio-is200-linux-kernel-driver,$(EIO_IS200_DRIVER_VERSION))
EIO_IS200_DRIVER_LICENSE = GPL-2.0
EIO_IS200_DRIVER_LICENSE_FILES = COPYING

$(eval $(kernel-module))
$(eval $(generic-package))

Which looks sensible to me (didn't check the details of the upstream
eio-is100-linux-kernel-driver Makefiles). Does it build some kernel
modules? What happens if you modprobe/insmod them?

-- 
Bye, Peter Korsgaard
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Re: [Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Hans-Heinrich Hansen]

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Hello Peter,

thank you for your assistance!

I've enabled again the loadable module support (CONFIG_MODULES=y), but it seems that the source code (EIO_IS200_DRIVER_SITE = $(call github,ADVANTECH-Corp,eio-is200-linux-kernel-driver,$(EIO_IS200_DRIVER_VERSION))) isn't downloaded. I think that it must be found in the output/build/buildroot-config/br2/external folder, but my output/build/buildroot-config/br2/external shows only the following directories and header files. All header files (created by buildroot?) are empty:
.:
eio  names.h
./eio:
is200
./eio/is200:
driver
./eio/is200/driver:
path.h  version.h

There must be an issue with my configuration, but I can't find it out. The folders "buildroot" and "buildroot-external"(attached zip file) are located in the same directory. "buildroot" contains the latest buildroot version. I've built it with "make BR2_EXTERNAL=../buildroot-external". Please do you have any idea how to proceed?

Yes, the EIO_IS200_DRIVER should build some kernel modules (thermal, watchdog, ...) for a newer Advantech embedded board.

Thank you,
Hans

________________________________
Von: Peter Korsgaard <peter@korsgaard.com>
Gesendet: Dienstag, 5. August 2025 08:04
An: Hans-Heinrich Hansen <hhansen@avt-nbg.de>; buildroot@buildroot.org <buildroot@buildroot.org>
Betreff: Re: AW: Buildroot with Advantech EIO-IS200-DRIVER

>>>>> "Hans-Heinrich" == Hans-Heinrich Hansen <hhansen@avt-nbg.de> writes:

Hello Hans,

Please keep Buildroot discussion on the mailing list, thanks.

 > Hi Peter,
 > my problem is indeed the "out-of-tree kernel module". Btw. I've tried
 > it with loadable module support enabled and disabled.

You will need to enable modules support in your kernel in order to build
and load external modules.

 > It seems that the eio-is200 is not used by the buildroot process.
 > I've followed the buildroot instructions. I'm sure that I've made a
 > mistake. Please can you check my attached configuraton files?

For reference, the custom package is:

################################################################################
#
# eio_is200_driver
#
################################################################################

EIO_IS200_DRIVER_VERSION = 082e737c59aa92bba2c29db46a06cdd0e5beb600
EIO_IS200_DRIVER_DEPENDENCIES = linux
EIO_IS200_DRIVER_SITE = $(call github,ADVANTECH-Corp,eio-is200-linux-kernel-driver,$(EIO_IS200_DRIVER_VERSION))
EIO_IS200_DRIVER_LICENSE = GPL-2.0
EIO_IS200_DRIVER_LICENSE_FILES = COPYING

$(eval $(kernel-module))
$(eval $(generic-package))

Which looks sensible to me (didn't check the details of the upstream
eio-is100-linux-kernel-driver Makefiles). Does it build some kernel
modules? What happens if you modprobe/insmod them?

--
Bye, Peter Korsgaard

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Re: [Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Peter Korsgaard]

>>>>> "Hans-Heinrich" == Hans-Heinrich Hansen <hhansen@avt-nbg.de> writes:

 > Hello Peter,
 > thank you for your assistance!

 > I've enabled again the loadable module support (CONFIG_MODULES=y), but
 > it seems that the source code (EIO_IS200_DRIVER_SITE = $(call
 > github,ADVANTECH-Corp,eio-is200-linux-kernel-driver,$(EIO_IS200_DRIVER_VERSION)))
 > isn't downloaded. I think that it must be found in the
 > output/build/buildroot-config/br2/external folder, but my
 > output/build/buildroot-config/br2/external shows only the following
 > directories and header files. All header files (created by buildroot?)
 > are empty:

No, the output/build/buildroot-config is simply an internal
implementation detail of the kconfig configuration system we are reusing
from the Linux kernel. Your package tarball should be in
output/dl/eio_is200_driver (unless you have customized BR2_DL_DIR) and
get extracted in
output/build/eio_is200_driver-082e737c59aa92bba2c29db46a06cdd0e5beb600
when building (if enabled in your .config)

-- 
Bye, Peter Korsgaard
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Re: [Buildroot] Buildroot with Advantech EIO-IS200-DRIVER

[Hans-Heinrich Hansen]

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Thank you Peter,

I've found the issue! The name in the Config.in was not correct.

Thanks for your support,
Hans


________________________________
Von: Peter Korsgaard <peter@korsgaard.com>
Gesendet: Mittwoch, 6. August 2025 09:37
An: Hans-Heinrich Hansen <hhansen@avt-nbg.de>
Cc: buildroot@buildroot.org <buildroot@buildroot.org>
Betreff: Re: AW: AW: Buildroot with Advantech EIO-IS200-DRIVER

>>>>> "Hans-Heinrich" == Hans-Heinrich Hansen <hhansen@avt-nbg.de> writes:

 > Hello Peter,
 > thank you for your assistance!

 > I've enabled again the loadable module support (CONFIG_MODULES=y), but
 > it seems that the source code (EIO_IS200_DRIVER_SITE = $(call
 > github,ADVANTECH-Corp,eio-is200-linux-kernel-driver,$(EIO_IS200_DRIVER_VERSION)))
 > isn't downloaded. I think that it must be found in the
 > output/build/buildroot-config/br2/external folder, but my
 > output/build/buildroot-config/br2/external shows only the following
 > directories and header files. All header files (created by buildroot?)
 > are empty:

No, the output/build/buildroot-config is simply an internal
implementation detail of the kconfig configuration system we are reusing
from the Linux kernel. Your package tarball should be in
output/dl/eio_is200_driver (unless you have customized BR2_DL_DIR) and
get extracted in
output/build/eio_is200_driver-082e737c59aa92bba2c29db46a06cdd0e5beb600
when building (if enabled in your .config)

--
Bye, Peter Korsgaard

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