From ff0e7d2bed64592c16e73e83cead8d76eda66f36 Mon Sep 17 00:00:00 2001
From: Peter Lawrence <12226419+majbthrd@users.noreply.github.com>
Date: Sun, 22 Dec 2019 18:18:54 -0600
Subject: implement multiple interfaces support

---
 src/class/midi/midi_device.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'src/class/midi')

diff --git a/src/class/midi/midi_device.c b/src/class/midi/midi_device.c
index b278039bf..0c68f8e71 100644
--- a/src/class/midi/midi_device.c
+++ b/src/class/midi/midi_device.c
@@ -332,9 +332,15 @@ bool midid_xfer_cb(uint8_t rhport, uint8_t ep_addr, xfer_result_t result, uint32
 {
   (void) result;
 
-  // TODO Support multiple interfaces
-  uint8_t const itf = 0;
-  midid_interface_t* p_midi = &_midid_itf[itf];
+  uint8_t itf = 0;
+  midid_interface_t* p_midi = _midid_itf;
+
+  for ( ; ; itf++, p_midi++)
+  {
+    if (itf >= TU_ARRAY_SIZE(_midid_itf)) return false;
+
+    if ( ep_addr == p_midi->ep_out ) break;
+  }
 
   // receive new data
   if ( ep_addr == p_midi->ep_out )
-- 
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