On Wed, May 17, 2023 at 09:16:45AM +0100, Lucas Tanure wrote: > Hi, > > Can I build a driver in the mainline kernel to a previous kernel version? Not easily, and you really do not want to do that as the whole kernel source, drivers included, are a snapshot in time and depend on each other. > Like, in the mainline kernel, I have a Z driver, and I want to use > that driver for my current stable driver in my embedded system with > version kernel 5.15. Is there a procedure to build a kernel driver > against other specific kernel headers? Update to a newer kernel version, it will be much easier and simpler overall. Drivers consume _everything_ from the core kernel, and are not stand-alone at all. They depend on everything else, trying to pick one out and put it into a different kernel is not how Linux works at all, sorry. What prevents you from just using a newer kernel? thanks, greg k-h _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
