Thanks so far!
I have 3 questions for my understanding:
1.) How to define extra Include Paths if the module needs some extra
Includes?
Like the "mach/gpio.h", which should be under
"<Kernel-Dir>/arch/arm/mach-at91/include" and is needed for the PIN
definitions.
Should it be done at the Makefile like:
CFLAGS_hello.o += -I${COMPILER_INCLUDE}
-I${KERNEL_DIR}/arch/arm/mach-at91/include
1.1) What are the equivalents to ${COMPILER_INCLUDE} and
${KERNEL_DIR} in Yocto?
1.2) Should it be done in the Makefile or at the bb-File?
2.) How to activate/deactivate the Driver in the "local.conf"?
3.) How does the process works with cmake?
3.1) Is it enough to inherit after modul cmake?
like @ hello-mod_0.1.bb -> "inherit module cmake"
With kind regards!
Stefan Jaritz
Entwickler
------------------------------------------------------------
ESA Elektroschaltanlagen Grimma GmbH
Broner Ring 30
04668 Grimma
Telefon: +49 3437 9211 176
Telefax: +49 3437 9211 26
E-Mail: s.jar...@esa-grimma.de
Internet: www.esa-grimma.de
Geschäftsführer:
Dipl.-Ing. Jörg Gaitzsch
Jörg Reinker
Sitz der Gesellschaft: Grimma
Ust.-ID: DE 141784437
Amtsgericht: Leipzig, HRB 5159
Steuernummer: 238/108/00755
Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte
Informationen.
Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich
erhalten
haben, informieren Sie bitte sofort den Absender und löschen Sie diese
Nachricht. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser
Mail
ist nicht gestattet.
This e-mail may contain confidential and/or privileged information. If you
are
not the intended recipient (or have received this e-mail in error) please
notify the sender immediately and destroy this e-mail. Any unauthorized
copying, disclosure or distribution of the material in this e-mail is
strictly
forbidden.
Von: "Esponde, Joel" <joel.espo...@honeywell.com>
An: "pet...@technux.se" <pet...@technux.se>, "yocto@yoctoproject.org"
<yocto@yoctoproject.org>
Datum: 10.05.2016 12:30
Betreff: Re: [yocto] How to build a simple kernel modul
Gesendet von: yocto-boun...@yoctoproject.org
Hi,
And here is a hello world module example:
http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta-skeleton/recipes-kernel/hello-mod
Joël Esponde
Honeywell | Sensing and Productivity Solutions
De : yocto-boun...@yoctoproject.org [mailto:yocto-boun...@yoctoproject.org
] De la part de Petter Mabäcker
Envoyé : mardi 10 mai 2016 06:51
À : yocto@yoctoproject.org
Objet : Re: [yocto] How to build a simple kernel modul
2016-05-09 17:06 skrev s.jar...@esa-grimma.de:
Hej,
I want to build a recipe for a simple GPIO Module. I found no tutorial at
the documentation. What is the comon way to build a simple kernel module?
The Makefile looks like:
#########
obj-m += ledmodule.o
SRC := $(shell pwd)
all: modules
modules:
$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules
modules_install:
$(MAKE) -C $(KERNEL_SRC) M=$(SRC) modules_install
clean:
rm -rf *.o *.ko *.mod.c
#########
The recipe contains:
#########
SUMMARY = "ledmodule"
SECTION = ""
LICENSE = "CLOSED"
inherit module
SRC_URI = "file://ledmodule.c \
file://Makefile \
"
S = "${WORKDIR}/ledmodule-0.1"
#########
Regards
Stefan Jaritz
Entwickler
------------------------------------------------------------
ESA Elektroschaltanlagen Grimma GmbH
Broner Ring 30
04668 Grimma
Telefon: +49 3437 9211 176
Telefax: +49 3437 9211 26
E-Mail: s.jar...@esa-grimma.de
Internet: www.esa-grimma.de
Geschäftsführer:
Dipl.-Ing. Jörg Gaitzsch
Jörg Reinker
Sitz der Gesellschaft: Grimma
Ust.-ID: DE 141784437
Amtsgericht: Leipzig, HRB 5159
Steuernummer: 238/108/00755
Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte
Informationen.
Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich
erhalten
haben, informieren Sie bitte sofort den Absender und löschen Sie diese
Nachricht. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser
Mail
ist nicht gestattet.
This e-mail may contain confidential and/or privileged information. If you
are
not the intended recipient (or have received this e-mail in error) please
notify the sender immediately and destroy this e-mail. Any unauthorized
copying, disclosure or distribution of the material in this e-mail is
strictly
forbidden.
Hi,
There are actually some guides for this, see lab4 in:
https://www.yoctoproject.org/sites/default/files/kernel-lab-2.1_0.pdf
But to simply build a module using bitbake, you can just do:
$ bitbake ledmodule
then you will find your recipe and the module in the ./tmp/work/ structure
(assuming you are not inheriting 'rm_work' in local.conf...).
if you just want to compile it, you can run:
$ bitbake ledmodule -c compile
BR Petter
Petter Mabäcker
Technux <pet...@technux.se>
www.technux.se--
_______________________________________________
yocto mailing list
yocto@yoctoproject.org
https://lists.yoctoproject.org/listinfo/yocto
--
_______________________________________________
yocto mailing list
yocto@yoctoproject.org
https://lists.yoctoproject.org/listinfo/yocto
