Re: USB host controllers

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If you look at Universal Serial Bus Controllers category, you'll
likely see 1 enhanced controller and 3-4 Universal (Non-enhanced)
Controllers. The way USB 2.0/1.0-1.1 works is the Enhanced
controller handles all USB2.0 devices. The other 3-4 are the
lower speed ports. When you plug in a USB 2.0 device the device
itself identifies whether it is USB 2.0 or Full Speed. This is how
Windows triggers the warnings about Device Speed connections.
Most recent motherboard USB design allows for all ports to run
at either USB2.0 (High Speed) or USB1/1.0 (Full Speed).

"Lem" <lemp40@xxxxxxxxxxx> wrote in message
news:42EE3ACA.DC7904A0@xxxxxxxxxxxxxx
> As I understand it, if Device Manager doesn't report "usb2 enhanced host
> controller" you don't have USB2. More than likely, your system has some
> USB2
> ports and some USB1.x ports. My 2-year-old Gateway has 6 USB ports, but
> only 4
> of them are USB2. Look more closely at your mobo spec ***.
>
> Andre De Clercq wrote:
>
>> Thanks Richard. My board specs say USB 2.0 and one of my devices (video
>> input convertor) runs perfectly under USB2.0, and the corresponding host
>> controller reports as "usb2 enhanced host controller" in the device
>> manager
>> window. The other 3 just show "usb universal host controller". Is this
>> because there is no USB2.0 device connected or because these controllers
>> rum
>> under standard USB drivers and need a USB2 driver too?
>>
>> "Richard Urban [MVP]" <richardurbanREMOVETHIS@xxxxxxxxxxx> wrote in
>> message
>> news:eBoiRsolFHA.3568@xxxxxxxxxxxxxxxxxxxxxxx
>> > When USB first came out some used to say it was high speed (as compared
>> > to
>> > what, a floppy drive?). But if the M/B specs do not say specifically
>> > that
>> > the board is USB 2.0 capable, you will have to purchase a plug in board
>> > that has the capabilities. It is all hardware based. If you don't have
>> > the
>> > hardware you can't use USB 2.0
>> >
>> > --
>> > Regards,
>> >
>> > Richard Urban
>> > Microsoft MVP Windows Shell/User
>> >
>> > Quote from: George Ankner
>> > "If you knew as much as you thought you know,
>> > You would realize that you don't know what you thought you knew!"
>> >
>> > "Andre De Clercq" <andre.declercq@xxxxxxxxxx> wrote in message
>> > news:ux1hXHolFHA.2180@xxxxxxxxxxxxxxxxxxxxxxx
>> >>I have an Intel 865 board and XP running. The board has 4 USB
>> >>(Highspeed
>> >>USB enabled in BIOS) controllers and hubs. If I want to connect USB2.0
>> >>capable devices, do I have to update all 4 controllers drivers, or
>> >>just
>> >>one? Thanks
>> >>
>> >
>> >
>


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