Tech Support > Microsoft Windows > Drivers > How to identify isochronous devices?
How to identify isochronous devices?
Posted by nas on May 14th, 2008


Hi,

I am new to driver development. i have to write a driver to USB
device. I read that UMDF is not supported for isochronous devices. but
how do i check that my device is isochronous devices? is there any way
to know this?

Posted by Doron Holan [MSFT] on May 14th, 2008


look at the endpoints in the config descriptor. if there are isoch
endpoints, you have an isoch device. typically an isoch device will be
multi interface, or at least one interface with multiple settings which
allow you to throttle bus bandwidth usage.
d

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