[ALSA] rawmidi: add get_port_info callback for sequencer information flags

Add a get_port_info callback to the snd_rawmidi_global_ops structure to
allow the USB MIDI driver to supply information flags for the sequencer
ports created by seq_midi.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

1 files changed, 3 insertions, 0 deletions

diff --git a/sound/core/seq/seq_midi.c b/sound/core/seq/seq_midi.c
index f873742c6532..1daa5b069c79 100644
--- a/sound/core/seq/seq_midi.c
+++ b/sound/core/seq/seq_midi.c
@@ -278,6 +278,7 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
         struct seq_midisynth *msynth, *ms;
         struct snd_seq_port_info *port;
         struct snd_rawmidi_info *info;
+        struct snd_rawmidi *rmidi = dev->private_data;
         int newclient = 0;
         unsigned int p, ports;
         struct snd_seq_port_callback pcallbacks;
@@ -389,6 +390,8 @@ snd_seq_midisynth_register_port(struct snd_seq_device *dev)
                 pcallbacks.unuse = midisynth_unuse;
                 pcallbacks.event_input = event_process_midi;
                 port->kernel = &pcallbacks;
+                if (rmidi->ops && rmidi->ops->get_port_info)
+                        rmidi->ops->get_port_info(rmidi, p, port);
                 if (snd_seq_kernel_client_ctl(client->seq_client, SNDRV_SEQ_IOCTL_CREATE_PORT, port)<0)
                         goto __nomem;
                 ms->seq_client = client->seq_client;