Re: Knowing how many ports the chip has

["E.S. Rosenberg" <es.rosenberg+libftdi.i2net@xxxxxxxxx>]

2014-04-22 10:18 GMT+03:00 Thomas Jarosch <thomas.jarosch@xxxxxxxxxxxxx>:

Hi Eli,

On Friday, 18. April 2014 14:20:07 E.S. Rosenberg wrote:
> Hi all,
> Going through the documentation I'm having a hard time figuring out how to
> know what the number of ports on my ftdi board is (obviously I know that
> I have 4 but on the program level).
>
> udev shows that there are 4 ports so it clearly has a way, but I'm
> scouring the libftdi API to no avail, there is a function to set what
> interface/port to use but no function to verify that the interface
> actually exists before trying to set it...
>
> Any pointers would be appreciated.

I think the easiest way to solve this is to look at the chip type,
see "ftdi->type". Then your program can decide how many ports to look for.

Ok, thanks.

Another question:

From what I gather for each port I want to use I need to create another ftdi_context, is this correct?

Thanks,
Eli

Cheers,
Thomas


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