15.5. Device Node Paths

15.5. Device Node Paths
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In Sun Ray devices, device nodes are created for each serial or printer port on an attached USB device. The device nodes are created in the hub directory corresponding to the hub to which they are attached. The nodes are named as follows:

manufacturer_name,model_name@upstream_hub_port

If the USB device has multiple identical ports (for example, two serial ports), the name is followed by :n where n is a numerical index, starting at 1.

The following example is a typical device node path:

/tmp/SUNWut/units/IEEE802.MACID/devices/usb@1/hub@1/manufacturer_name,model_name@3:1

Here are the definitions of the naming conventions.

Term	Definition
`physical-topology`	The `physical-topology` is `hub@port/hub@port` and so on. The `port` refers to the port on the parent hub into which the device or child hub is plugged.
`printer-name-1`, `terminal-name-1`	The printer and terminal name in the Sun Ray devices directory is `manufacturer,model@port` with a colon separating the numerical index when the string just described is not unique in the directory.
`printer-name-2`, `terminal-name-2`	The printer and terminal name in the Sun Ray `dev` directory is the manufacturer and serial number concatenated with an alphabetic index when the serial number is not unique.

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15.4. Device Nodes and USB Peripherals	Home	15.6. Device Links