Closed source drivers running in kernel address space ... realistically — by now we know that even open source drivers running in kernel space isn’t really that great an idea. MacOS/iOS are about to move the file system layer and any third party kernel extensions out of kernel space and into user space — it seems to me an inevitable necessity that the notion that “hardware interfaces need drivers in the kernel” is going to have to die ... the time has arrived where hardware components (other than cpu and memory) need to be viewed as user space programs that the kernel talks to when the kernel wants to...