USB host Application Development

Hi All,

I'm new into USB application development and I've to develop a U.S.B
Application for a U.S.B sound device which must be able to run on
Windows XP/Vista. The purpose of this application is to get the data
from the USB port, sent by the USB sound device. The application has
to fetch the data at a good rate and without any compromise in the
data integrity.

In order to achieve the above said things, i need answers for the
questions below.

1. Which of the 3 options can be used to get access to the sound
device?
a.UMDF
b.KMDF
c.WinUSB

2.The device driver for this device is still not implemented, and on
what type of transfer could it be developed for this sound device?

a.Isochronous.
b.Bulk

If I assume it to be Isochronous then the retransmission will not be
possible. If i assume it to be Bulk Transfer, the data transfer cannot
happen continuously. Which of these 2 transfers are best suited for
the data transfer without much loss in the data?

3.In the 'WinUSB how to use WinUSB to communicate with a USB
device.doc', the control command usage and construction of a setup
packet are expalined, however these code snippets are not found in the
UMDF/KMDF. Is it specific to only WinUSB?

4.In the WDK source code sample, the USB application in the path given
below belongs to which of the 3 options?(UMDF,KMDF,WinUSB)?
C:\WinDDK\6001.18002\src\usb\isousb\exe
C:\WinDDK\6001.18002\src\usb\bulkusb\exe

Please help.

Regards,
Sanjay
.

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