* reserve "probe" to actually probe for devices
* use separate probe for libusb and MIDI port devices
* use "available" to check if surface can be used
* allow both methods to be NULL
* remove unused ControlProtocolDescriptor* argument
Most surface just return `true` for available.
LGPL'd SMPTE code and moved in to libardour_cp;
Juggled control_protocol dir layout to be the same as other libs;
git-svn-id: svn://localhost/ardour2/trunk@610 d708f5d6-7413-0410-9779-e7cbd77b26cf
b) single-thread Tranzport implementation
c) implement BasicUI to share functionality across multiple
controllers
d) various minor fixes here and there
git-svn-id: svn://localhost/trunk/ardour2@468 d708f5d6-7413-0410-9779-e7cbd77b26cf
b) added initial "big meter" mode for tranzport
c) fixed some lock issues in ARDOUR::IO objects
d) generic_midi control surface module now compiles and loads
git-svn-id: svn://localhost/trunk/ardour2@450 d708f5d6-7413-0410-9779-e7cbd77b26cf
b) move tranzport and generic midi into separate dirs under "surfaces"
git-svn-id: svn://localhost/trunk/ardour2@442 d708f5d6-7413-0410-9779-e7cbd77b26cf
