How to Avoid Writing Device Drivers for Embedded Linux - Chris Simmonds, 2net

How to Avoid Writing Device Drivers for Embedded Linux - Chris Simmonds, 2net Writing device drivers is time consuming and error prone. The good news is that in most cases you don’t have to because Linux provides ready-made drivers for common types of interface. If you want to twiddle some GPIO pins, fade the brightness of an LED or read the temperature using a chip you got from Adafruit, it is all done for you. Well … almost all: you still have to write some user-space code to call the generic driver. In this presentation I will give examples using three subsystems: GPIO, PWM and I2C. For each one I will show you how to write code to control hardware from the safe and simple environment of your application, written in C or C (bindings for other languages exist). If all goes well, there will be live demos of each category. About Chris Simmonds Chris Simmonds is a software consultant and trainer living in southern England. He has almost two decades of experience in designing and building open-source emb