Returns the name of the debug adapter driver being used.
@end deffn
-@deffn Command {adapter usb location} <bus>:<port>[.<port>]...
+@deffn Command {adapter usb location} <bus>-<port>[.<port>]...
Specifies the physical USB port of the adapter to use. The path
roots at @var{bus} and walks down the physical ports, with each
@var{port} option specifying a deeper level in the bus topology, the last