jackstart -
requires the kernel be patched for 'capabilities',
whatever that
is.
It means that you can access low latency without running apps, e.g.
Ardour, as root.
But that's the _effect_ of capabilities, not _what_ capabilities are.
I think I have understood that 'capabilities' means something different. I
understood that it meant that certain applications could be given certain
higher priority or performance, somewhat 'root level' operation. Beyond that
I know nothing.
I do understand that the kernel must be patched to provide 'capabilities',
and then even having done that, the kernel 2.4.X must be patched to handle
low-latency and pre-emptive multi-tasking, and who knows how many more
things, to have jack work at the level I need it to work at.