Robert P. J. Day wrote: >> I find this an astonishing assertion. Surely the Linux kernel >> interface changes reasonably often? > > um ... no. the kernel *internal* interfaces may change, but the > interface that is presented to the outside world is very stable. > > http://lxr.linux.no/source/Documentation/stable_api_nonsense.txt Did you actually read this article that you quoted? ------------------------------ You think you want a stable kernel interface, but you really do not, and you don't even know it. What you want is a stable running driver, and you get that only if your driver is in the main kernel tree. ------------------------------ As I understand it, this discussion is about drivers that are _not_ in the main kernel tree. I quite often compile the orinoco_usb module, which is not in the kernel tree, and quite recent versions of this fail to compile with new kernels (eg 2.6.23 as compared with 2.6.20).