Well, no, it's "this interface works fine for you if you implement it."
The kernel doesn't magically know whether your device file has data available to read, your device file has to define what that means. That's all I'm referring to. Hooking that up to kqueue usually involves writing 5-10 lines of code.
The kernel doesn't magically know whether your device file has data available to read, your device file has to define what that means. That's all I'm referring to. Hooking that up to kqueue usually involves writing 5-10 lines of code.