I think that's the way some people are using FTDI chips. If you leave 
out the EEROM,
Windows gets no specific information... But the FTDI driver (NON-PnP 
versions, mind you...)
keeps chuggin' along and works fine anyway...

--Bob

Jan-Erik Soderholm wrote:

>Andrew Warren wrote :
>
>  
>
>>    The HID driver is often used, especially with low-speed USB
>>    devices, for low-throughput generic data transfers.  Jan Axelson
>>    has written a book that describes the method in great detail;
>>    information on her book (and lots of other USB info, too) is on
>>    her web site at http://www.lvr.com . 
>>
>>    -Andy
>>    
>>
>
>Hi.
>Found AN956 at Microchip. That app note describes the use of
>the CDC class ("Communication Device Class") that is used to
>run emulated COM ports. An easy way to move an COM/USART
>based application to USB. No (or minor) changes to the PC
>app (still uses the COM port API's in Windows) and Microchip
>provides "CDC firmware" that hides the USB details from the
>PIC application.
>
>Maybe worth a look... :-)
>
>There is a link to the app note from the device page for any
>of the new 18F USB PIC's.
>
>Regards,
>Jan-Erik.
>
>
>
>  
>


-- 
Note: To protect our network,
attachments must be sent to
attach@engineer.cotse.net .
1-866-263-5745 USA/Canada
http://beam.to/azengineer

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist