Summary
After reading this chapter, you are familiar with the IIO framework and vocabulary. You know what channels, devices, and triggers are. You can even play with your IIO device from the user space, through sysfs or a character device. The time to write your own IIO driver has come. There are a lot of available existing drivers that don't support trigger buffers. You can try to add this feature to one of them.
In the next chapter, we will play with the GPIO subsystem, which is a basic concept that has been introduced in this chapter as well.
