diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/MIDI.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/MIDI.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/MIDI.h b/LUFA/Drivers/USB/Class/Host/MIDI.h index 31b79912f..2a64dc099 100644 --- a/LUFA/Drivers/USB/Class/Host/MIDI.h +++ b/LUFA/Drivers/USB/Class/Host/MIDI.h @@ -121,6 +121,9 @@ /** Sends a MIDI event packet to the device. If no device is connected, the event packet is discarded.
*
+ * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the
+ * call will fail.
+ *
* \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state
* \param[in] Event Pointer to a populated USB_MIDI_EventPacket_t structure containing the MIDI event to send
*
@@ -131,6 +134,9 @@ /** Receives a MIDI event packet from the device.
*
+ * \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the
+ * call will fail.
+ *
* \param[in,out] MIDIInterfaceInfo Pointer to a structure containing a MIDI Class configuration and state
* \param[out] Event Pointer to a USB_MIDI_EventPacket_t structure where the received MIDI event is to be placed
*
|