How to install AD9361 driver on yocto (bitbake)

Hi,

You would need to compile the Linux kernel from our own tree: analogdevicesinc/linux · GitHub

The ad9361 driver won't compile with a mainline kernel as some of our work on the IIO framework isn't upstream yet.

I'm pretty sure that OpenEmbedded / Yocto allows you to specify a custom git repository for the kernel (although I personally didn't test that).

Regards,

-Paul

Hi, thx for your prompt response, and sorry for my late,I was working on another project.

If you are familiar with bitbake, can you give a few more details...,

I create a layer "meta-fmc" where I specify to use a kernel from your source, but I have a problem:

     "ERROR: Multiple. BB files are due to be built which each provides virtual/kernel      (/home/user/yocto2/meta-forms/recipes-kernel/Linux/Linux-yocto-custom. BB /home/user/yocto2/meta-      Xilinx/recipes-kernel/Linux/linux-xlnx_3. 14.bb).

     This usually means one provides something the other doesn't and should."

should I erase "meta-Xilinx"?

Hi,

I am facing a similar problem. Could you share the layer you created? I am already struggling with specyfing the AD kernel as source...

Thank you!

Regards,

Ralf

Creating a layer is not so difficult,

yocto-bsp create fmc arm , (this command will create a meta-fmc)

you chose  a custom kernel not the default one, and bitbake will ask you for a remote git repo,

git://github.com/analogdevicesinc/linux.git in our case, you chose the branch and others parameters ...

at the end you add this layer on conf/bblayers.conf,

and you add the line PREFERRED_PROVIDER_virtual/kernel = "linux-yocto-custom" on clonf/local.conf

otherwise bitbake will build the linux-xlnx kernel.

Hi,

still struggling :-) I managed to create the layer but after downloading the kernel sources the job do_validate_branches fails because git complains about the commit ID.

What does your linux-yocto-custom.bb file look like?

Regards,

Ralf

Hi, I didn't change too much...

inherit kernel

require recipes-kernel/linux/linux-yocto.inc

KBRANCH = "2014_R2"

SRC_URI = "git://github.com/analogdevicesinc/linux.git;protocol=git;bareclone=1;branch=${KBRANCH}"

SRC_URI += "file://defconfig"

SRC_URI += "file://fmc.scc \

            file://fmc.cfg \

            file://fmc-user-config.cfg \

            file://fmc-user-patches.scc \

           "

LINUX_VERSION ?= "3.17"

LINUX_VERSION_EXTENSION ?= "my"

SRCREV="0bca95e3bb09ae791ded44070b92a0ea94369ad3"

PR = "r0"

PV = "${LINUX_VERSION}+git${SRCPV}"

COMPATIBLE_MACHINE_fmc = "fmc"

Hi - I little late to the party, but:

will the ad9361.c now compile with a mainline kernel?
I'm on the Xilinx Yocto 2021.1 branch, and I see the ad9467.c as part of the mainline kernel's collection of iio/adc/ drivers; but not ad9361.c

Should I be able to just add the src appropriately to the BBs/src folders?

Thanks for any advice you can provide

- Paulito

Please don't post to an old closed thread. Please create a new one.

The ad9361 is not mainline. You need to use our Linux kernel from here:

https://github.com/analogdevicesinc/linux

-Michael