Hello, Wol. On Thu, Jan 21, 2021 at 09:32:13 +0000, Wols Lists wrote: > On 20/01/21 19:59, Alan Mackenzie wrote: > > I can understand the kernel maintainers not being enthusiastic about > > the existing code. But that dates from, I believe, the 1990s, when > > RAM was measured in megabytes, and processor speeds in megahertz. > > Optimisation for speed and store usage just isn't important any more.
> I think you're being highly optimistic. Bear in mind that this is the > code that was responsible for Alan Cox ceasing linux development, it's > such a pile of steaming manure ... It is indeed a tortuous mess of code, with far too many abstractions, and far too little overview. > Don't ask me why it is, but I think it's got so much stuff wrong with it > that the entire system is marked "beware here be dragons". Over the weekend, I achieved the first part of my task, getting a transparent new driver into the kernel, which would merely pass through to and from /dev/sctty3 to and from /dev/tty3, etc. This works. Now I have to hook up with the /dev/vcs drivers to buffer the text written to the screen, so as to be able to output it again in the event of a <Ctrl>-<PageUp/Down>. I would guess I'm around 50% through the task (as in the first 50% takes the first 90% of the time, and the second 50% takes the second 90% of the time). > https://lwn.net/Articles/842415/ > Take a read, as it's mentioned in this article. The website said it would become freely available on 2021-01-28, so I'll read it then. > Cheers, > Wol -- Alan Mackenzie (Nuremberg, Germany).
