On Thu, 25 Aug 2016, Jacek Anaszewski wrote:
I'd see it as follows:
#1-1 1-2 2-1
#echo "1-1" > new_port
#echo "2-1" > new_port
We've already had few discussions about the sysfs designs trying
to break the one-value-per-file rule for LED class device, and
there was always strong resistance against.
This scheme has multiple values in both the available_ports and
observed_ports files. :-( Not that I have any better suggestions...
Also a description of the device connected to the port would be a nice
feature, however I am not certain about the feasibility thereof.
What kind of description do you mean? Where should it be used / where
should it appear?
Product name/symbol. Actually it should be USB subsystem responsibility
to provide the means for querying the product name by port id, if it
is possible at all.
These will work if there is a device registered under PORT.