USB code resource search result, page 40, Verysource

[Visual Basic (VB)] vbusb.zip The example of communication of usb in vb
Category: USB develop Upload User：gaoyannt Size：62K
[Visual C++ (VC++)] usb2.zip A source on the usb programming
Category: USB develop Upload User：szbowei Size：12K
[C/C++] USB-Driver(USB2COM).zip Can USB transfer to COM Port。
Category: USB develop Upload User：zhujianf Size：96K
[C/C++] usb.zip Mobile phone USB driver code, and portability strong. Includes USB initialization, operation, use.
Category: USB develop Upload User：fangfushao Size：187K
[Visual C++ (VC++)] LPC1768-USB-Comm-src.rar USB virtual serial device (USB2COM) source code
Category: USB develop Upload User：hailimenye Size：39K
[C/C++] usb.rar usb function Introduction
Category: USB develop Upload User：feijie Size：1168K
[C/C++] USB-Complete.rar USB Complete Reference
Category: USB develop Upload User：wsjy2b Size：5331K
[C/C++] usb-complete-doc.rar USB complete reference source code
Category: USB develop Upload User：dhzj88 Size：498K
[PDF] USB-CH341.rar USB adapter chip ch341 technical parameters- Chinese data
Category: USB develop Upload User：chirj2005 Size：177K
[Visual C++ (VC++)] usb.zip USB
Category: USB develop Upload User：nbxfyzm Size：25K