Re: Problem with udev device identification

[Camaleón <noelamac@gmail.com>]

On Wed, 20 Apr 2011 17:21:41 -0400, Sebastian Lara wrote:

> I have three different serial devices connected to three usb-serial
> converters (FTDI USB-RS232). If I connect them, I get the generic device
> names /dev/ttyUSBx as expected. When I try to write some udev rules,
> udevadm shows me the same output for the three devices except in some
> device serial id attributes.
> 
> Those serial id's will change on every device so if I use a different
> usb-serial converter, my rules won't work anymore. So, I need a way to
> communicate with the specific device connected to the serial converters
> and identify it by its response.

(...)

There must be a string that uniquely identifies the converters despite 
the device being attached on them... for instance, how about the serial 
number? This value shouldn't be shared between the tree devices at all :-?

Greetings,

-- 
Camaleón