Andiry: Can you take a look at this email thread? In particular, http://marc.info/?l=linux-usb&m=132026489818947&w=2 Anton has an ATI SB[789]xx EHCI controller (vendor 0x1002 product 0x4396) which takes a long time to turn off its periodic schedule -- as long as 8 ms from the time PSE is set to 0 until PSS becomes 0. Do you have any idea what's wrong or how to fix it? Alan Stern -- 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