Am 24.12.2012 20:23, schrieb Alan Stern: > On Fri, 21 Dec 2012, Frank Schäfer wrote: > >> Anyway, system still wakes up from S3 immediately. > It just occurred to me that not too long ago we learned about a BIOS > bug in ASUS systems that affects EHCI controllers during system suspend > (the workaround is commit dbf0e4c7257f8d684ec1a3c919853464293de66e; you > can look it up if you want). Perhaps the same bug affects OHCI > controllers too. > > It can't hurt to try the test. Does the patch below make any > difference? Thank you for the patch, but it makes no difference. :( Regards, Frank > > Alan Stern > > > > Index: usb-3.7/drivers/pci/pci-driver.c > =================================================================== > --- usb-3.7.orig/drivers/pci/pci-driver.c > +++ usb-3.7/drivers/pci/pci-driver.c > @@ -716,7 +716,7 @@ static int pci_pm_suspend_noirq(struct d > * Since the value of the COMMAND register doesn't matter once the > * device has been suspended, we can safely set it to 0 here. > */ > - if (pci_dev->class == PCI_CLASS_SERIAL_USB_EHCI) > + if ((pci_dev->class >> 8) == PCI_CLASS_SERIAL_USB) > pci_write_config_word(pci_dev, PCI_COMMAND, 0); > > return 0; > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
