Re: [Ftdi-usb-sio-devel] Question on FTDI driver

[Bill R. <br...@pa...>]

  Hi,

There is no correspondence between the serial number of the device and 
the /dev/ttyUSB number.

The first device enumerated gets USB0, then next USB1 and so on.

You are correct about the usb-serial layer needing to be changed A lot 
of work would be required to make this work through to the usb-serial 
infrastructure (at least last time I looked at it anyway) which is not 
something I am interested in doing.

If you want to work on a solution the other person to liase with would 
be Greg since he  owns the usb-serial layer but this topic has been 
broached before and there isn't much interest in the current developers.

Bill


Serge Manigault wrote:

>Hello,
>I would like to know were are stored the informations about the link
>between the FTDI chip (serial number) and the linux device /dev/ttyUSB?
>I didn't find any tools related to such information.
>I try to use several FTDI chip connected (hotpluged) on a HUB.
>I had a look at the sources and may be it's more an usb-serial upper
>layer,
>may be someone here will have a link...
>Thanks for any responses,
>Regards,
>
>Serge
>
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