On Fri, 2008-12-19 at 23:09 +0800, Alan Stern wrote: > On Fri, 19 Dec 2008, Zhang Rui wrote: > > > device parallel resume support for PCI devices > > There are some PCI devices which won't work right if they are resumed > in parallel. The example I have in mind is a USB host controller > device with both a high-speed EHCI controller function and some > companion low/full-speed UHCI or OHCI controller functions. The EHCI > driver relies on the fact that the EHCI controller has a higher > function number and therefore is resumed _after_ the companion > controllers. > well, I never got this problem before. is this normal? does this exist on the Intel hardware? I'd like to do some test if I have chance. > We need a way to express dependencies like this between devices. Or at > least, there has to be a way to prevent certain devices from resuming > in parallel. > agree. Just like the case above, can you give me a lspci output and show me what exactly the dependency is? thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
