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AVStream : 2 devices on an USB box
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| Edward Hsu 2005-10-27, 9:55 pm |
| Dear All,
I am developing an AVStream device driver for a MPEG2 HW encoding USB
box. The MPEG2 capture pin is working now. Now I try to develop a HID device
driver for IR (Infrared) device on the same USB box. But I don't know how to
make WinXP know this USB device has two devices (one is MPEG2 encoder and the
other is IR receiver)? PS : I use (VID, PID) of USB device to identify the
device but one USB device only has one (VID, PID) value. Any comments are
very appreciated.
Thanks a lot!!!
Edward
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| Marc Reinig 2005-10-28, 6:56 pm |
| The standard way to do this is to use multiple interfaces, one interface per
"device".
Marc Reinig
System Solutions
"Edward Hsu" <EdwardHsu@discussions.microsoft.com> wrote in message
news:277BCB83-4DF3-462A-8968-43AAC7D34D6F@microsoft.com...
> I am developing an AVStream device driver for a MPEG2 HW encoding USB
> box. The MPEG2 capture pin is working now. Now I try to develop a HID
> device
> driver for IR (Infrared) device on the same USB box. But I don't know how
> to
> make WinXP know this USB device has two devices (one is MPEG2 encoder and
> the
> other is IR receiver)? PS : I use (VID, PID) of USB device to identify the
> device but one USB device only has one (VID, PID) value. Any comments are
> very appreciated.
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