Hello, I'm an embedded developer with experience in embedded linux and Linux device drivers. I have been working with linux kernel subsystems such as SPI, I2C, IIO, GPIO and Input(touchscreen). What I have done: https://www.freelancer.com/projects/C-Programming/Write-kernel-ADC-driver-for/, https://www.freelancer.com/projects/C-Programming/Adapting-linux-driver-that-works/, https://www.freelancer.com/projects/C-Programming/Driver-development/