Hello, i am not shure if this is the wright topic for tech board.
But i am looking for some info on how to program usb.
is there any cind of chip or something that wuld make programming simple like printer port.
Printer port gets data in 8bit block and you have to write a number 0 - 255 to port 0x378, and you can turn on some leds from pins i think 2 - 9.
and this works wery good and is also easy, only problem is that you can flash only 8 led-s.
I read on how stuf works that USB can send data in 64-bit block, so i think this culd mean 64 led-s, and if you hook up another device it can be 64 bits of upstream too.
But usb has only 4 wires, and 2 of tham are for power supplay.
that means you need a chip that 64 outputs and 4 inputs, i also read that the device like this needs to comunicate back to the computer so that it can know what it is.
Does anyone have any good links, or forums, or books were i can find more info about this, couse google is very poor on info about usb.