Hi. On Mon, Nov 3, 2008 at 2:26 PM, Matthew Garrett <mjg59@xxxxxxxxxxxxx> wrote: > Various pieces of hardware (such as the Acer Aspire One and Asus EEE) > use PCIE hotplug to change the state of devices in response to events > such as the removal of SD cards or disabling the wireless radio. > However, they do not provide firmware support for this. As a consequence > pciehp will refuse to load and various things break. > > The existing workaround has been to use the pciehp_force option. This is > undesirable as there is little guarantee that manipulating the power > file in the slot directory will actually result in anything happening, > leading to potential user confusion and hardware damage. This patch adds > a new option, pciehp_passive. In this configuration pciehp will listen > for events and notify the PCI core appropriately. However, it will not > provide any user controllable sysfs attributes and so the risk of > confusion or damage is averted. Any system slots that do have firmware > support will continue to provide full functionality. > > Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx> > On my system (a hp laptop) I have to use pciehp_force=1 to have the service driver hpdriver loaded and an IRQ (MSI-Edge) assigned. Does this patch mean that in the future I'd have to use the new pciehp_passive=1 switch instead? Sorry if I wasn't clear, I'm not an English native speaker. Regards, Fabio -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
