On Thu, 27 Oct 2016 10:25:39 -0400 Rich Freeman <ri...@gentoo.org> wrote:
> It would be nice if standards like USB incorporated some kind of GUID. > I ended up having to write a udev rule for a pl2303 RS232 adapter to > tie it to a specific USB port precisely so that I could have more than > one and know which one talked to which device. > > I'd argue that the udev network interface names were a better (if > painful to transition to) solution to a problem created by somebody > else. Being able to use wildcards in configuration files is probably > an adequate solution for those who are using a single device. > You mean like a device serial number? Which is totally part of the USB standard, but many devices don’t bother to include one because they would have to be serially programmed in the factory? If your device has a serial number, you can generally see it as a udev attribute and use it to set up meaningful persistent names for multiple otherwise-identical devices. -- Christopher Head
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