Adding drivers to Yocto raspberry pi image

Question

I want to add the AD5628(http://cateee.net/lkddb/web-lkddb/AD5064.html) DAC Device drivers to kernel in the yocto.

So i have build a yocto image for raspberry Pi by following the guide http://git.yoctoproject.org/cgit/cgit.cgi/meta-raspberrypi/about/

Now i want to add the Dac Driver module to kernel so i tried to bitbake command

bitbake -c menuconfig rpi-hwup-image

so that i can get a configuration menu and can add the drivers . But it is giving me error saying that menu configure does not exists for the target . So i tried

 bitbake linux-raspberrypi -c menuconfig

But i am getting error

"there was error creating child process for this terminal, failed to execute child process "oe-gnome-terminal-phonehome" (no such files or directory) ".

So someone please help me to add AD5628 driver to the kernel . Thanks

The driver code is located in the build/tmp/work-shared/drivers/iio/dac/AD5628.c , But i am not getting to how to add to the image — Akshay Vijapur
if anyone could help me by specifying how to add the dac driver to my image . the drivers are already present in the yocto/build/temp/work-shared/drivers/iio/dac — Akshay Vijapur

Akshay Vijapur Akshay Vijapur · Accepted Answer · 2016-11-25T04:55:49

we need to create a .bbappend file in the meta-layer directory (in my case it should be meta-raspberrypi) , The contents of bbappend file should be

SRC_URI += "file:///path/to/config.cfg"

then create a config.cfg in the same directory and contents should be

CONFIG_AD5604 = y

I have given the name AD5604 because that driver suports the ad5628 device.

thanks for the support

Adding drivers to Yocto raspberry pi image

1 Answers