diff options
| author | Takashi Iwai <tiwai@suse.de> | 2023-06-12 10:10:48 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-06-12 18:22:29 +0200 |
| commit | 960a1149c8fa70c221c70eaa13903ff873ba1873 (patch) | |
| tree | 92360938f74fabd58592322e0c71df4d781087ad /sound/usb | |
| parent | 54852e8f401a70b3a0197737122be523639dc62f (diff) | |
ALSA: usb-audio: Add midi2_ump_probe option
Add a new option to enable/disable the UMP Endpoint probing.
Some firmware seems screwed up when such a new command issued, and
this option allows user to suppress it.
Link: https://lore.kernel.org/r/20230612081054.17200-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/midi2.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/sound/usb/midi2.c b/sound/usb/midi2.c index fad094e15999..13fa1978267a 100644 --- a/sound/usb/midi2.c +++ b/sound/usb/midi2.c @@ -27,6 +27,10 @@ static bool midi2_enable = true; module_param(midi2_enable, bool, 0444); MODULE_PARM_DESC(midi2_enable, "Enable MIDI 2.0 support."); +static bool midi2_ump_probe = true; +module_param(midi2_ump_probe, bool, 0444); +MODULE_PARM_DESC(midi2_ump_probe, "Probe UMP v1.1 support at first."); + /* stream direction; just shorter names */ enum { STR_OUT = SNDRV_RAWMIDI_STREAM_OUTPUT, @@ -1136,10 +1140,12 @@ int snd_usb_midi_v2_create(struct snd_usb_audio *chip, goto error; } - err = parse_ump_endpoints(umidi); - if (err < 0) { - usb_audio_err(chip, "Failed to parse UMP endpoint\n"); - goto error; + if (midi2_ump_probe) { + err = parse_ump_endpoints(umidi); + if (err < 0) { + usb_audio_err(chip, "Failed to parse UMP endpoint\n"); + goto error; + } } err = create_blocks_from_gtb(umidi); |