»/sys/class/gpio is Dead (in Portuguese)«
2019-08-03, 17:10–17:50, Radisson Amsterdã

Who never used /sys/class/gpio to do a hello world blink, or even used this Linux kernel virtual fs interface to develop user space drivers? But its days are numbered, it is expected that until the end of 2020 it will be removed from the Linux Kernel. In this talk we will discuss the pros and cons of the old interface and show, in practice with Toradex boards, the new interface that the Linux Kernel offers for accessing GPIOs by User Space.