Hi Alan, On Mon, 2012-05-14 at 10:03 -0400, Alan Stern wrote: > On Sun, 13 May 2012, Geoff Levand wrote: > > > > Does ehci_poll_PSS() get called? And when it does, does it call > > > ehci_set_command_bit()? > > > > > > No, ehci_poll_PSS() is never called. I need to do some more work to > > understand what's happening. Any suggestions would be welcome. > > Check out what's happening in enable_periodic(). The first time > through, ehci->enabled_hrtimer_events should not have the > EHCI_HRTIMER_DISABLE_PERIODIC bit set, so the "if" statement's "else" > case should call ehci_poll_PSS(). I was just able to do a quick test, but I found EHCI_HRTIMER_DISABLE_PERIODIC is set the first time through, so ehci_poll_PSS() is never called. I'll look at it some more. -Geoff -- 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