如何练习编写真正的Linux设备驱动程序？

I am a intermediate level programmer with a decent experience in Linux Kernel Programming. During my internship I was mostly involved in debugging the kernel and driver code. I recently finished studying the Kernel Development book by Robert Love. I am halfway through the Linux Device Drivers Book by Jonathan Corbet. But I am now faced with a troubling issue. None of these books teach me how to actually write I am a intermediate level programmer with a dec