diff options
| author | Takashi Iwai <tiwai@suse.de> | 2024-07-22 17:06:06 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2024-07-22 17:17:51 +0300 |
| commit | ac29d8ae05b770ed3f52d7a60908ab9b126f69d7 (patch) | |
| tree | f3224953c7d71b8ce3937b5b741a4f7c1df6db04 /sound | |
| parent | 9a4ab167cfb1dea1df0c0c948205a62c7eb3b85b (diff) | |
| download | linux-ac29d8ae05b770ed3f52d7a60908ab9b126f69d7.tar.xz | |
ALSA: ump: Force 1 Group for MIDI1 FBs
When a Function Block declares it being a legacy MIDI1 device, it has
to be only with a single UMP Group. Correct the attribute when a
device declares it wrongly.
Fixes: 37e0e14128e0 ("ALSA: ump: Support UMP Endpoint and Function Block parsing")
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240722140610.10845-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/core/ump.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/core/ump.c b/sound/core/ump.c index b325fcfa77d0..0f0d7e895c5a 100644 --- a/sound/core/ump.c +++ b/sound/core/ump.c @@ -733,6 +733,12 @@ static void fill_fb_info(struct snd_ump_endpoint *ump, info->block_id, info->direction, info->active, info->first_group, info->num_groups, info->midi_ci_version, info->sysex8_streams, info->flags); + + if ((info->flags & SNDRV_UMP_BLOCK_IS_MIDI1) && info->num_groups != 1) { + info->num_groups = 1; + ump_dbg(ump, "FB %d: corrected groups to 1 for MIDI1\n", + info->block_id); + } } /* check whether the FB info gets updated by the current message */ |