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

Re: Support USB2.0 High-Speed, High Bandwidth Endpoints by Marc

Marc
Mon Nov 08 08:52:45 CST 2004

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

Marc Reinig
System Solutions

"CLT" <CLT@discussions.microsoft.com> wrote in message
news:4BB1C869-754F-4116-8DDD-476EFD4E5527@microsoft.com...
> 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.



Re: Support USB2.0 High-Speed, High Bandwidth Endpoints by Jackal

Jackal
Mon Nov 08 23:58:02 CST 2004

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

"CLT" <CLT@discussions.microsoft.com> ...
> 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
>
>
>
>