I will develop embedded linux device tree and kernel drivers for your board

I bring up peripherals on embedded Linux boards: device tree, kernel modules and drivers.

When a sensor, display or interface does not appear under Linux, the cause is usually the device tree, a missing driver, or a kernel config. That is the work I do.

WHAT I CAN DO

Device tree nodes and overlays for I2C, SPI, UART, GPIO and PWM devices

Out-of-tree kernel modules and platform drivers

Porting an existing driver to your kernel version

Kernel config and boot log debugging

Yocto and Buildroot recipe issues

Getting a peripheral to enumerate and stay stable

HOW IT WORKS

Send me your board, kernel version, the device you are bringing up and its datasheet. Ideally your dmesg output too. You get the source, build instructions and an explanation of what was actually wrong.

WHAT YOU GET

Full source, yours to keep

Tested against your kernel version where I can reproduce your setup

The root cause in writing, not just a patch

Boards I work with include Raspberry Pi, BeagleBone, Xilinx Zynq and NXP i.MX.

Tell me what isn't showing up and I'll tell you whether I can fix it.