From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yann E. MORIN <yann.morin.1998@free.fr>
Date: Sun, 13 Oct 2013 16:51:24 +0200
Subject: [Buildroot] Kernel module compiled but not found
In-Reply-To: <525AAE63.3060601@gmail.com>
References: <525AAE63.3060601@gmail.com>
Message-ID: <20131013145124.GA16563@free.fr>
List-Id: <buildroot.busybox.net>
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To: buildroot@busybox.net

Marco, All,

On 2013-10-13 16:29 +0200, Marco Trapanese spake thusly:
> Hello,
> I read the official documentation and this tutorial:
> 
> http://blog.willygroup.org/buildroot-aggiungere-modulo-al-kernel.html#fn-729-1
> 
> to add a custom kernel module.
> It seems it is successfully compiled but I cannot find the .ko file in the
> Buildroot tree.
> This is the relevant output:
> 
> >>> sensoray2253 1.2.6 Building
> /usr/bin/make -j5
> HOSTCC="/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/ccache
> /usr/bin/gcc" HOSTCFLAGS="" ARCH=arm
> INSTALL_MOD_PATH=/home/mark/dev/rpiqt5/buildroot-rpi/output/target
> CROSS_COMPILE="/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/ccache /home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/arm-buildroot-linux-gnueabi-"
> DEPMOD=/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/sbin/depmod -C
> /home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom
> M=/home/mark/dev/rpiqt5/buildroot-rpi/output/build/sensoray2253-1.2.6
> modules
> make[1]: Entering directory
> `/home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom'
>   Building modules, stage 2.
>   MODPOST 0 modules
> make[1]: Leaving directory
> `/home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom'
> >>> sensoray2253 1.2.6 Installing to target
> /usr/bin/make -j5
> HOSTCC="/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/ccache
> /usr/bin/gcc" HOSTCFLAGS="" ARCH=arm
> INSTALL_MOD_PATH=/home/mark/dev/rpiqt5/buildroot-rpi/output/target
> CROSS_COMPILE="/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/ccache /home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/bin/arm-buildroot-linux-gnueabi-"
> DEPMOD=/home/mark/dev/rpiqt5/buildroot-rpi/output/host/usr/sbin/depmod -C
> /home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom
> M=/home/mark/dev/rpiqt5/buildroot-rpi/output/build/sensoray2253-1.2.6
> modules_install

You're missing INSTALL_MOD_PATH=$(TARGET_DIR) on this command line
(the make line for 'MYKMOD_INSTALL_TARGET_CMDS' ).

Regards,
Yann E. MORIN.

> make[1]: Entering directory
> `/home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom'
>   DEPMOD  3.9.11
> make[1]: Leaving directory
> `/home/mark/dev/rpiqt5/buildroot-rpi/output/build/linux-custom'
> mkdir -p /home/mark/dev/rpiqt5/buildroot-rpi/output/target/etc
> echo "rpi" > /home/mark/dev/rpiqt5/buildroot-rpi/output/target/etc/hostname
> 
> 
> As you can see, there are no errors but I'm not sure the module is correctly
> installed!
> According to the tutorial I should find it in:
> 
> buildroot_folder/output/target/lib/modules/kernel_version/extra/
> 
> but mine is empty.
> 
> How investigate further?
> Thanks
> Mark
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

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