diff -Nur linux-3.5.orig//drivers/usb/host/Kconfig linux-3.5/drivers/usb/host/Kconfig --- linux-3.5.orig//drivers/usb/host/Kconfig 2012-07-21 22:58:29.000000000 +0200 +++ linux-3.5/drivers/usb/host/Kconfig 2012-07-29 11:59:56.000000000 +0200 @@ -66,6 +66,7 @@ config USB_EHCI_ROOT_HUB_TT bool "Root Hub Transaction Translators" depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST + default n ---help--- Some EHCI chips have vendor-specific extensions to integrate transaction translators, so that no OHCI or UHCI companion @@ -78,7 +79,7 @@ config USB_EHCI_TT_NEWSCHED bool "Improved Transaction Translator scheduling" depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST - default y + default n ---help--- This changes the periodic scheduling code to fill more of the low and full speed bandwidth available from the Transaction Translator