Re: GGI, EGCS/PGCC, Kernel source

Jes Degn Soerensen (
25 Feb 1998 14:54:11 +0100

>>>>> "Kristian" == Kristian Koehntopp <> writes:

Kristian> Please read again what you wrote and think about it:

Kristian> Jes Degn Soerensen said:
Kristian> Seems to me that a) the current kernel interface is not
Kristian> complete enough for the approach (do as much as possible in
Kristian> userland) you propose and that b) you are proposing just
Kristian> what you say the KGI part of GGI does (extending the kernel
Kristian> interface), but with the additional disadvantage of doing it
Kristian> in an uncoordinated, random way.

We disagree strongly when it comes to putting things related to
acceleration into the kernel. I think this should only be in the
kernel for console support for frame buffer consoles and nothing else.

Kristian> The GGI people and you agree in how things should be done
Kristian> (do as much as possible in userland), and you both agree
Kristian> that kernel extensions are necessary to enable these
Kristian> userland application to do their work. But their proposal
Kristian> organizes the kernel modifications in a more meaningful
Kristian> way. Plus they already have the needed userspace emulation
Kristian> libraries ready.

The multihead support is not unstructured as it is now for monitor, a
structured way of assigning input devices to consoles does not have to
do with graphics at all. There may be a limitation in the way the
kernel handles this at the moment.

If people need interrupts for graphics boards, then there is a problem
which is currently not handled by the kernel.


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