1 files changed, 31 insertions, 0 deletions

diff --git a/portmidi/pm_linux/pmlinuxnull.c b/portmidi/pm_linux/pmlinuxnull.c
new file mode 100644
index 0000000..257f3d6
--- /dev/null
+++ b/portmidi/pm_linux/pmlinuxnull.c
@@ -0,0 +1,31 @@
+/*

+ * pmlinuxnull.c -- system specific definitions

+ * 

+ * written by:

+ *  Roger Dannenberg

+ * 

+ * If there is no ALSA, you can define PMNULL and build PortMidi. It will

+ * not report any devices, so you will not be able to open any, but if

+ * you wanted to disable MIDI from some application, this could be used.

+ *    Mainly, this code shows the possibility of supporting multiple

+ * interfaces, e.g., ALSA and Sndio on BSD, or ALSA and Jack on Linux.

+ * But as of Dec, 2021, the only supported MIDI API for Linux is ALSA.

+ */

+

+#ifdef PMNULL

+

+#include "portmidi.h"

+#include "pmlinuxnull.h"

+

+

+PmError pm_linuxnull_init(void)

+{

+    return pmNoError;

+}

+

+

+void pm_linuxnull_term(void)

+{

+}

+

+#endif