There is a bug in the usbview DDK sample when they display the
wMaxPacketSize information for
high-speed isochronous and interrupt enpoints.
In the current sample (3790.1218) the just display the wMaxPacketSize field.
In the description of this
field in the USB 2.0 spec, it says:

For all endpoints, bits 10..0 specify the maximum packet size (in bytes).
For hight-speed isochronous and interrupt endpoints, bits 12..11 specify the
number of additional transaction
opportunities per microframe.

Since I do not know where to file DDK bug report I am posting this on this
newsgroup.

Olivier Lechenne
Logitech Inc.

Re: DDK USBView sample bug by Eliyas

Eliyas
Wed Oct 20 08:34:43 CDT 2004

Thanks. I will forward this to the USB team.

--
--
-Eliyas
This posting is provided "AS IS" with no warranties, and confers no rights.
http://www.microsoft.com/whdc/driver/default.mspx
http://www.microsoft.com/whdc/driver/kernel/KB-drv.mspx



"Olivier Lechenne" <toto@a.com> wrote in message
news:uKBdtvUsEHA.224@TK2MSFTNGP15.phx.gbl...
> There is a bug in the usbview DDK sample when they display the
> wMaxPacketSize information for
> high-speed isochronous and interrupt enpoints.
> In the current sample (3790.1218) the just display the wMaxPacketSize
> field.
> In the description of this
> field in the USB 2.0 spec, it says:
>
> For all endpoints, bits 10..0 specify the maximum packet size (in bytes).
> For hight-speed isochronous and interrupt endpoints, bits 12..11 specify
> the
> number of additional transaction
> opportunities per microframe.
>
> Since I do not know where to file DDK bug report I am posting this on this
> newsgroup.
>
> Olivier Lechenne
> Logitech Inc.
>
>