On Thu, Jan 14, 2010 at 02:21:55PM -0800, Ron Madrid wrote: > Hello all, > > I am working with a custom MPC8313 based board running > linux and want to have USB communication between my board > and a host machine. I would like to make a few > statements and find out if my assumptions are correct. > > 1. I need to write a gadget driver for my board. Yes, if the existing ones do not work with your hardware. > 2. I need to write a device driver for my host > machine. That depends on the type of usb device you wish your device to be. If you pick a "class" device, then no, you will not, as the host driver will already be written (usb storage is an example of this.) > 3. I need to write application programs that open > each (respective) driver in order to define the > communication between each device. No, it depends on what type of USB device you create. If it's a storage device, you access it through the "normal" file apis on the host computer. > Basically, what I want to be able to do is access data from > my board and send it back to my host machine via USB, in a > similar fashion as send() recv() in socket > programming. Does there already exist any drivers that > implement a generic raw data transfer capability that can be > interfaced in this manner? Yes, the ethernet gadget device, or the serial one should work. > I do already know about the ethernet over usb drivers and > have tried them in the past. I want something more > direct and with less overhead. Why do you feel the ethernet gadget has too much overhead? Have you tried the serial one? good luck, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
