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| author | Takashi Iwai <tiwai@suse.de> | 2023-05-23 09:53:49 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-05-23 12:11:25 +0200 |
| commit | ff166a9d19fab3d77f50e9413df046fb1d7c01cc (patch) | |
| tree | 83f10c67596229f116c898a0ee27622b16486cd6 /sound/core/seq/seq_dummy.c | |
| parent | ALSA: seq: Support MIDI 2.0 UMP Endpoint port (diff) | |
| download | linux-ff166a9d19fab3d77f50e9413df046fb1d7c01cc.tar.xz linux-ff166a9d19fab3d77f50e9413df046fb1d7c01cc.zip | |
ALSA: seq: Add port direction to snd_seq_port_info
Add a new field "direction" to snd_seq_port_info for allowing a client
to tell the expected direction of the port access. A port might still
allow subscriptions for read/write (e.g. for MIDI-CI) even if the
primary usage of the port is a single direction (either input or
output only). This new "direction" field can help to indicate such
cases.
When the direction is unspecified at creating a port and the port has
either read or write capability, the corresponding direction bits are
set automatically as default.
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20230523075358.9672-29-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/core/seq/seq_dummy.c')
| -rw-r--r-- | sound/core/seq/seq_dummy.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/core/seq/seq_dummy.c b/sound/core/seq/seq_dummy.c index 8c18d8c4177e..2e8844ee32ed 100644 --- a/sound/core/seq/seq_dummy.c +++ b/sound/core/seq/seq_dummy.c @@ -127,6 +127,7 @@ create_port(int idx, int type) pinfo.capability |= SNDRV_SEQ_PORT_CAP_WRITE | SNDRV_SEQ_PORT_CAP_SUBS_WRITE; if (duplex) pinfo.capability |= SNDRV_SEQ_PORT_CAP_DUPLEX; + pinfo.direction = SNDRV_SEQ_PORT_DIR_BIDIRECTION; pinfo.type = SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | SNDRV_SEQ_PORT_TYPE_SOFTWARE | SNDRV_SEQ_PORT_TYPE_PORT; |