В Fri, 29 Aug 2008 11:26:07 -0400 (EDT) Alan Stern <[EMAIL PROTECTED]> пишет:
> On Fri, 29 Aug 2008, Benjamin Herrenschmidt wrote: > > > I suppose some embedded platforms don't use CONFIG_PM, is this > > still a requirement for autosuspend ? Or do that happen always on > > an empty port nowadays ? > > ohci-hcd doesn't automatically suspend the root hub if CONFIG_PM isn't > set. However it isn't necessary to set CONFIG_SLEEP, > CONFIG_HIBERNATION, or CONFIG_USB_SUSPEND. That is good to know. But even assuming PM set, common use-case of embedded systems to have stuff on USB bus that is never plugged off; and in case of compiled-in ehci and ohci there is just Initializing USB Mass Storage driver... usb 1-1: new high speed USB device using ppc-of-ehci and address 2 usb 1-1: device descriptor read/all, error -110 hub 1-0:1.0: unable to enumerate USB device on port 1 (not touching PM here to be clear) even 1-second delay would be enough for root hub to be hosed... So, is the patch (with all the issues addressed) acceptable for mainline? Thanks, -Vitaly _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
