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Observer
Observer
5,760 Views
Registered: ‎02-16-2015

How to use the custom user module in root petalinux 2014.4

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I have precompiled my linux module like the following pdf and it is built when I build the kernel. Once I boot the kernel I am having trouble understanding how to use the .ko driver that was prebuilt in the kernel.

 

The .ko driver is no where in the root directory but was built and installed to the rootfs.

 

lsmod shows nothing but I think that is correct. 

 

 

[root@localhost mydma]# find ../../../ -name "xfifo*"
../../../build/linux/rootfs/modules/xfifo_dma
../../../build/linux/rootfs/modules/xfifo_dma/xfifo_dma.o
../../../build/linux/rootfs/modules/xfifo_dma/xfifo_dma.mod.c
../../../build/linux/rootfs/modules/xfifo_dma/xfifo_dma.c
../../../build/linux/rootfs/modules/xfifo_dma/xfifo_dma.mod.o
../../../build/linux/rootfs/modules/xfifo_dma/xfifo_dma.ko
../../../build/linux/rootfs/modules/xfifo_dma/.tmp_versions/xfifo_dma.mod
../../../build/linux/rootfs/targetroot/lib/modules/3.17.0-xilinx/extra/xfifo_dma.ko
../../../components/modules/xfifo_dma
../../../components/modules/xfifo_dma/xfifo_dma.c

 

root@Xilinx-ZC706-2014_4:/# find / -name "*xfifo*"
root@Xilinx-ZC706-2014_4:/#

 

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Scholar
Scholar
9,783 Views
Registered: ‎09-05-2011
The procedure to include pre-built modules into PetaLinux root file system is mentioned on page 63 of the following guide
http://www.xilinx.com/support/documentation/sw_manuals/petalinux2014_4/ug1144-petalinux-tools-reference-guide.pdf

did you use the same method?

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Xilinx Employee
Xilinx Employee
5,720 Views
Registered: ‎07-01-2010
The below link provides details on how to add kernel modules to Petalinux root file system.
http://www.xilinx.com/support/answers/55997.html

Regards,
Achutha
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Scholar
Scholar
9,784 Views
Registered: ‎09-05-2011
The procedure to include pre-built modules into PetaLinux root file system is mentioned on page 63 of the following guide
http://www.xilinx.com/support/documentation/sw_manuals/petalinux2014_4/ug1144-petalinux-tools-reference-guide.pdf

did you use the same method?

View solution in original post

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Observer
Observer
5,621 Views
Registered: ‎02-16-2015

I am. I just got my modules to load on the board and I am not sure what I did. I am using the bsp with my hw description imported to the project.

 

Thanks for the response!

Kevin

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