On Fri, 25 Jul 2003, David Brownell wrote: > Benjamin Herrenschmidt wrote, responding to Alan Stern: > >>I think the hub driver's power management code may be at fault. It needs > >>to cancel the status interrupt URB when suspending and resubmit it when > >>waking up; right now it probably does neither one. > >> > >>Or maybe I'm wrong about that. Perhaps it's okay to leave the URB active. > >>If that's the case, then the root hub power management code needs to be > >>changed to restart the status URB timer after a wakeup. > > I thought that patch got merged already ... > > > >>I'm not sure how the design is intended to work, but either way something > >>needs to be fixed. > > Yes, it seems like all the HCDs (and the hub driver) need attention.
So far as I can see, there's no USB power management code at all apart from the HC drivers. That includes the hub driver. And I know that the UHCI suspend routine could use a little work. There's a 10-Hz polling timer that it doesn't turn off. Alan Stern ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
