USB for Qt Application

[AlphaWolfXV]

Have you had any chance to use the libusb-win32? I have downloaded it and would also like to use it for a simple HID application. Please advise if you had any success with it so far. I am running Windows Vista Business (32bit) with QT4.5.0 with QtCreator 1.0.0.
Thanks!

[arunpk]

hi friends
I am developing qt application for usb Relay board through qt application only i need to control all the 8 relay, but the problem is i am understanding how to approach it. if you guys have any idea regarding these please let me know, and send example application as per these requirment concern.

[ChrisW67]

Here are some ideas:

• Determine how your relays are accessed by reading the documentation that comes with them or their controller board.
• Choose a library or programming interface to access them (if one is not provided with the devices). This will involve some research on your part but this thread already contains viable methods.
• Write your code

This is not a Qt problem, there is no Qt support for accessing USB devices, and you are very unlikely to have someone write your code for you (even with a less vague specification). If you come across a Qt related question while doing this feel free to come back, but please refrain from resurrecting four-year-old threads to post vague "me too" questions.

[arunpk]

Thanx Chris...... I have idea about how am going to access...... From thsi forum i got USB Example application...... Now am trying with that application to connect my relay board..... i have given the exact VID & PID but still its not detecting the board..... Now i need clarification regarding this.... Hope you can do..... ...