Support USB2.0 High-Speed, High Bandwidth Endpoints

Discussion in 'Windows Vista Drivers' started by CLT, Nov 8, 2004.

  1. CLT

    CLT Guest

    Dear Sir,
    My Company is the IC Design House.
    We are design IC for 802.11 QOS.

    Does Windows XP USB2.0 EHCI driver support "the High-Speed, High Bandwidth
    Endpoints" ?????

    In USB2.0 spec......... section 5.9....
    5.9 High-Speed, High Bandwidth Endpoints
    USB supports individual high-speed interrupt or isochronous endpoints that
    require data rates up to
    192 Mb/s (i.e., 3072 data bytes per microframe). One, two, or three
    high-speed transactions are allowed in
    a single microframe to support high-bandwidth endpoints.

    Best Regards,

    CLT, Nov 8, 2004
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  2. CLT

    Marc Reinig Guest

    I don't think they are supported for Interrupt endpoints in XP or Server
    2003, but I think Longhorn does.

    Marc Reinig
    System Solutions
    Marc Reinig, Nov 8, 2004
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  3. CLT

    Jackal Huang Guest

    I think the anwser is "Yes" since our device works for high bandwidth
    isochronous transfer. Currently, our device can transfer up to 2048 bytes
    per microframe.

    Best Regards

    Jackal Huang
    Jackal Huang, Nov 9, 2004
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