wsmuxctl —
configure wsmuxes
  
    | wsmuxctl | [ -adev]-fctldev
      [-l] [-L]
      [-rdev] | 
The wsmuxctl allows to adding and removing devices
  connected to a wsmux(4).
Added and removed devices are specified by a name, not a path
    name. Simply use wsmouseN, wskbdN, or
    wsmuxN where N is the number of the device.
The options are:
  - -adev
- Add the specified device to the mux.
- -fctldev
- Specify the control device of the wsmux to operate on. A number may be
      given, which is then taken to be the number of the mux.
- -l
- List all devices connected to a mux.
- -L
- List all devices connected to a mux and recursively list mux
    subdevices.
- -rdev
- Remove the specified device from the mux.