Are these books outdated?

[Greg KH]

On Wed, Aug 10, 2016 at 11:16:13PM +0530, Raul Piper wrote:
> Most of the books like Essential linux device drivers, Robert love kernel
> development,
> Linux device drivers by Rubini
> Most of the books are based on old kernels 2.2,2.6 etc
> 
> I wanted to know hasnt the kernel evolved during these times and is it still
> good to design drivers based on that theory.Since device trees and possibly
> many other concepts would have evolved and  obviously the apis related to them
> like _of_ apis for device tree parsing.
> Please comment- which book to be read or followed?

The ideas should still be the same, but the details have changed.

If you don't like that, then just refer to the best documentation there
is, the source itself.  The kernel comes with TONS of built-in
documentation (make pdfdocs) and all of the source code which shows
exactly how things work together.

And it's free!

best of luck,

greg k-h