libftdi Archives

Subject: Re: FTDI clone development

From: Akos Vandra <axos88@xxxxxxxxx>
To: libftdi@xxxxxxxxxxxxxxxxxxxxxxx
Date: Mon, 26 Sep 2011 12:11:33 +0200
libusb and libftdi are working on windows, aren't they?

On 26 September 2011 12:10, Xiaofan Chen <xiaofanc@xxxxxxxxx> wrote:
> On Mon, Sep 26, 2011 at 6:04 PM, Uwe Bonnes
> <bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>>>>>> "Xiaofan" == Xiaofan Chen <xiaofanc@xxxxxxxxx> 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
>
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