As all of you can tell from the title, I need help understanding how to communicate to a USB port. Basically I need to send some bits to a usb micro controller and to do so I need to understand how you do it in C for both a Windows and Linux computers. I'm going to be creating my own interface (still figuring that out) which basically works by having the micro controller send out a signal so I can figure out what port it's on and from then on I just start sending the bits to it.

1. Dev C Usb Communication Services
2. Dev C++ Usb Communication Center
3. Dev C Usb Communication Tool

So here's a breakdown of what I need to know.

1. When the data exits the port to the device, will it have the port address with it when the device reads in the data?
2. I'm going to be working with Ubuntu and Win XP, what things will I need to utilize from the OS?
3. Would you recommend a better way to interface to USB?
4. Do I have to repeatedly send a signal when trying to find which usb port the device is on?

As you can tell I'm kind of jumping into this without know what I'm getting myself into. I'm open to any suggestions (other than giving up).

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Paul.Esson53

Dev C Usb Communication Services

You may have to write a driver for the USB device or uterlize it as a communications port as say you do with usb serial adapters or things like that.

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The windows device foundation SDK has methods for dealing with USB devices ( and also quite possable some sample code. ) Documentation can be found here.

Dev C++ Usb Communication Center

I'm trying to develop a program that communicates with a USB device. I've just started playing around with some functions and I need some help. I wrote the code bellow and when I compile it, I have no errors but when i run it i get the following errors. I have a problem regarding communication with a USB device on Windows. I can't use libusb or WinUSB as I have a specific driver for that (Silabs USB to UART, which is a USB-to-serial bridge). This is how I initialize a device file, send&read data and close the handle. Install dev c++ for mac. HANDLE hDevFile = CreateFile(L'.

Dev C Usb Communication Tool

The windows device foundation also allows you to write a usermode driver, if you don't want to risk crashing windows :P.

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