On Wed, 2016-01-27 at 11:33 +0530, Muni Sekhar wrote: > [ Please keep me in CC as I'm not subscribed to the list] > > Hello, > > My test system is having two USB1.1 (OHCI) controllers and one USB2 > (EHCI) controller. > > I am assuming When a High-Speed device is connected to the port, the > EHCI takes care of it. If the device is Full-Speed or Low-Speed, the > EHCI is disconnected from the port and the UHCI/OHCI is connected > instead. But I noticed a different behaviour i.e. when I connect > Full-Speed device(CSR’s Bluetooth device using btusb.ko driver) it is > ending up at an EHCI controller instead of OHCI controller, any > explanation? You are using a hub. In that case TTs in the hub are used. The switch to OHCI would happen only if you went directly to the HC. HTH Oliver -- 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
