Lpc2000

First of all, using LPC2138 for USB applications is not a good idea. Why 
  don't you use LPC214x?

You have very good USB audio example on keil page:

http://www.keil.com/download/docs/308.asp

<quote>
An USB Audio Device (HID) does not require any special USB driver, since 
the USB Audio support is already built into Windows 2000 and Windows XP. 
Therefore USB Audio devices can be directly connected to the computer.
</quote>

Girish Wabale wrote:
> I want to make my USB Headset using LPC 2138 .This is my first time to
> use USB.
> How do I tell PC that it It has to send or recieve  encoded audio
> signal to the USB.
> Do I need to write saperate device driver for windows or Human
> Interface  Driver(HID) will takecare of it..
> 
> 
> Plz help ..
> 
> Thanks and regards
> 
> Girish
> 
> 
> 
> 
> 
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