[PATCH] Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing"
This reverts commit ac5e2fb425e1121ceef2b9d1b3ffccc195d55707.
The commit caused a regression on Behringer UMC404HD (and likely others). As the change was meant only as a minor optimization, it's better to revert it to address the regression.
Reported-and-tested-by: Michael Ralston michael@ralston.id.au Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/CAC2975JXkS1A5Tj9b02G_sy25ZWN-ys+tc9wmkoS=qPgKCogS... Signed-off-by: Takashi Iwai tiwai@suse.de --- sound/usb/stream.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/sound/usb/stream.c b/sound/usb/stream.c index f75601ca2d52..f10f4e6d3fb8 100644 --- a/sound/usb/stream.c +++ b/sound/usb/stream.c @@ -1222,6 +1222,12 @@ static int __snd_usb_parse_audio_interface(struct snd_usb_audio *chip, if (err < 0) return err; } + + /* try to set the interface... */ + usb_set_interface(chip->dev, iface_no, 0); + snd_usb_init_pitch(chip, fp); + snd_usb_init_sample_rate(chip, fp, fp->rate_max); + usb_set_interface(chip->dev, iface_no, altno); } return 0; }
participants (1)
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Takashi Iwai