Ardour has automation modes for many of it's controls. As of version 5.9, OSC can control what automation mode a fader uses. (See Automation.)

The form of the automation mode command is:

/strip/[control]/automation ii ssid mode

• /strip may also be /select in which case the only parameter is the mode.
• [control] as of Ardour version 5.9 control can be:
  • gain
  • fader
  This list will expand.
• ssid can be a parameter as shown or inline (automation/[ssid]). /select has no ssid.
• mode can be one of:
  • 0 Manual mode
  • 1 Play mode
  • 2 Write mode
  • 3 Touch mode
  The mode value may be sent as a float allowing a "pot" or "slider" with a range of 0 to 3 to be used to control mode.

The next version of Ardour will add /strip/[control]/automation_name is ssid mode_name as feedback. A surface may choose to use only the first character of the string (M, P, W or T) instead of the whole string (this is in git now).

The touch mode needs more input so there is a Touch command as well (added post 5.9). It is almost identical to the automation command:

/strip/[control]/touch ii ssid touch

The only difference is the last parameter is 1 for touched and 0 for touch released. All of the rest of the explanation above applies.