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.
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
sound/usb/midi2.c | 14 ++++++++++----
1 file 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);
--
2.35.3
