|author||Thomas Schwinge <email@example.com>||2009-07-21 20:06:47 +0200|
|committer||Thomas Schwinge <firstname.lastname@example.org>||2009-07-21 20:06:47 +0200|
open_issues/user-space_device_drivers: Event objects.
Diffstat (limited to 'open_issues/user-space_device_drivers.mdwn')
1 files changed, 5 insertions, 0 deletions
diff --git a/open_issues/user-space_device_drivers.mdwn b/open_issues/user-space_device_drivers.mdwn
index 43795705..33e75942 100644
@@ -27,6 +27,11 @@ Also see [[device drivers and IO systems]].
* *Omega0* paper defines an interface.
+ * As is can be read in the *Mach 3 Kernel Principles*, there is an *event
+ object* facility in Mach that can be used for having user-space tasks react
+ to IRQs. However, at least in GNU Mach, that code (`kern/eventcount.c`)
+ doesn't seem functional at all and isn't integrated properly in the kernel.
* Security considerations.