On Mon, Sep 26, 2011 at 6:04 PM, Uwe Bonnes <[email protected]> wrote: >>>>>> "Xiaofan" == Xiaofan Chen <[email protected]> writes: > Xiaofan> I do not think you offended anyone. I am just give a warning. > > I don't think that implementing an USB command compatible clone is a > problem. The API is documented in the linux kernel ftdi_sio driver and > libftdi. The reuse of FTDI VID/PID would be.
Even without reusing the FTDI VID/PID, using the FTDI drivers (say Windows driver or the D2xx library under Linux/Windows) could be an issue, if for commercial use. > But I doubt the usefullness. No low price cortex I know of has a build in > high speed USB phy, and implementing something like synchronous > FIFO will be hard. The real issue is the CDC-ACM driver under Windows (usbser.sys) is not that good. If not, all major USB MCU vendors provide standard CDC-ACM implementations. -- Xiaofan -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to [email protected]
