capture data from already communicating usb port

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Hi,

I connect my device to my pc with usb port. i run the software which connects to the device and reads the required information.

I am looking for a code which will capture the data from that port. I just need to customise the data and prepare a different report which the device software is not able to.

can anyone please help me on this?

Thank you,
rizz

Posted 21-May-13 21:50pm

mogalrizwan

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Dave Kreskowiak · Answer 1 · 2013-05-22T05:06:00

The problem is that you're thinking that you can treat the USB "port" the same as a serial or parallel port. You can't. Look at what USB stands for: Universial Serial BUS. It's an expansion bus, not unlike the slots on your motherboard. It's not a port.

The only way you're going to be able to intercept communication is with Kernel-level code, specifically, writing a USB Client Driver.

If you don't know what I'm talking about, start here[^]. More resources can be found here[^]

Good Luck!

Oh! I almost forgot... You're not going to do this in VB.NET or C#. Well, not unless you like rewriting lots of C constants, enums, structures, ..., in your code and PInvoking all kinds of driver functions.