Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 201)

USB Protocol Suite User Manual 201
General Options Teledyne LeCroy Corporation
The View Fields for Standard Request dialog box displays field definitions and values of
the Standard Request.
For field definitions, please refer to the Universal Serial Bus Specification, version 2.0. The
USB specification is available from the USB Implementers Forum (USB‐IF) at:
8.3.3 Decoding Class Requests
Examples of a class request are Mass‐Strg Class UFI CBI Requests, PTP Still Image Class
Requests, Video Class Requests, and Wire Adapter Class Requests.
To decode a class request:
1. From the USB Device Request menu, select Decode ... Request to display the
View Fields for ... Class Requests text box (see Figure 8.9 on page 201 ).
The following figure shows a View Fields for Hub Class Requests decoding:
Figure 8.9: View Fields for Hub Class Requests Dialog
8.3.4 Decoding Vendor Requests
To decode a vendor request:
 From the USB Device Request menu, select Decode ... Request to display the
View Fields for ... Vendor Requests text box.
An example of a vendor request is Command Set.
USB Implementers Forum
1730 SW Skyline Blvd. 
Suite 203
Portland, OR 97221 Tel: +1/503.296.9892
Fax: +1/503.297.1090
Web: http://www.usb.org/