On Wed, Dec 26, 2012 at 12:32 AM, Alan Stern <st...@rowland.harvard.edu> wrote: > On Tue, 25 Dec 2012, Xiaofan Chen wrote: >> But indeed you are right I do not see UHCI components in my Mac Mini 2011. >> Root <class IORegistryEntry> >> 1: EHCI Root Hub Simulation@1D,7 <class IOUSBRootHubDevice> >> 2: HubDevice@fd100000 <class IOUSBHubDevice> >> 3: IR Receiver@fd110000 <class IOUSBDevice> >> 4: PROLiNK PCC3220@fd130000 <class IOUSBDevice> >> 1: EHCI Root Hub Simulation@1A,7 <class IOUSBRootHubDevice> >> 2: HubDevice@fa100000 <class IOUSBHubDevice> >> 3: BRCM20702 Hub@fa110000 <class IOUSBHubDevice> >> 6: Bluetooth USB Host Controller@fa113000 <class >> IOUSBDevice> >> 4: USB2.0 Hub@fa130000 <class IOUSBHubDevice> >> 7: Amontec JTAGkey-2@fa131000 <class IOUSBDevice> >> 8: usb serial converter@fa133000 <class IOUSBDevice> >> 9: USB Receiver@fa134000 <class IOUSBDevice> >> 10: FT232R USB UART@fa132000 <class IOUSBDevice> >> 5: USB Keyboard@fa120000 <class IOUSBDevice> > > That's understandable if Apple has recently switched to using Intel > chipsets. Intel stopped including UHCI controllers some time ago; > instead they attach an on-board hub to each EHCI controller.
I see. Thanks for the info. >From Wikipedia and Google, it seems to me up until X58 chipset (using ICH10/ICH10R south bride), there is still UHCI. But not from P55 onwards. Ref: http://en.wikipedia.org/wiki/List_of_Intel_chipsets#5.2F6.2F7_Series_chipsets http://bretjohnson.us/ -- Xiaofan ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
