Am trying to figure how can I make some software and USB hardware.
Let’s put the hardware thing aside for now. For software, how can I send data to a USB port?
C++ / Java or any other language (prefer to be working on Linux).
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Am trying to figure how can I make some software and USB hardware.
Let’s put the hardware thing aside for now. For software, how can I send data to a USB port?
C++ / Java or any other language (prefer to be working on Linux).
USB ports are not like “dumb” RS-232 serial ports. It’s a bus, that requires quite complicated handling, all driven by the host (the computer, typically). Very low-level operations such as “sending ones and zeros” to the data pins are more or less impossible.
The easiest way to program USB from user-space in Linux is probably to use libusb.
On the client (your custom USB hardware) end, either look for a system featuring a built-in USB controller, or a software stack. I don’t think writing your own software stack is feasible, since you (no offense) don’t seem to be quite at that level regarding your knowledge of USB.
V-USB is a software USB stack for Atmel’s AVR microcontrollers, for instance.