Messages in this thread | | | Date | Sat, 16 Apr 2005 11:46:13 -0700 (PDT) | From | Paul Ionescu <> | Subject | hot-addacpi-hotplug-decouple-slot-power-state-changes-from-physical-hotplug.patch |
| |
--- Rajesh Shah <rajesh.shah@intel.com> wrote:
> > Is p2p hotplug in your roadmap (for i386) ? > > I believe others are already working on it. I expect to free up > a bit more in a couple of weeks. If I don't see any patches or > indication of activity by then, I'll work on adding this support > too. > > Rajesh
Hi Rajesh,
While waiting for a p2p bridge hotplug support, I give a try to linux-2.6.12rc2-mm3 which include your patch for powering on and off an ACPIPHP controlled PCI slot without actually remove the pci card. I gave it a try on my IBM thinkpad booted in docking station which has an ACPIPHP slot.
An echo 0 > /sys/bus/pci/slots/SOME_NUMBER/power is removing some devices ( verified with cat /proc/pci ), but gives some kernel errors on console. An echo 1 > /sys/bus/pci/slots/SOME_NUMBER/power is not activating the devices again ( again tested with cat /proc/pci) but gives some kernel errors on console + some cpu registers and a segfault.
In my dock I have a ide controller, 2 yenta pcmcia slots, and a PCI slot where I have a bttv supported tv card. All drivers needed were compiled in kernel, no modules needed.
Was this setup supposed to work ? I can provide more info if needed.
Thanks, Paul
__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |