From 0e85a22d01dfe9ad9a9d9e87cd4a88acce1aad65 Mon Sep 17 00:00:00 2001 From: Craig McLure Date: Tue, 24 May 2022 08:21:15 +0200 Subject: ALSA: usb-audio: Configure sync endpoints before data Devices such as the TC-Helicon GoXLR require the sync endpoint to be configured in advance of the data endpoint in order for sound output to work. This patch simply changes the ordering of EP configuration to resolve this. Fixes: bf6313a0ff76 ("ALSA: usb-audio: Refactor endpoint management") BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215079 Signed-off-by: Craig McLure Reviewed-by: Jaroslav Kysela Cc: Link: https://lore.kernel.org/r/20220524062115.25968-1-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'sound') diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 6d699065e81a..b470404a5376 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -439,16 +439,21 @@ static int configure_endpoints(struct snd_usb_audio *chip, /* stop any running stream beforehand */ if (stop_endpoints(subs, false)) sync_pending_stops(subs); + if (subs->sync_endpoint) { + err = snd_usb_endpoint_configure(chip, subs->sync_endpoint); + if (err < 0) + return err; + } err = snd_usb_endpoint_configure(chip, subs->data_endpoint); if (err < 0) return err; snd_usb_set_format_quirk(subs, subs->cur_audiofmt); - } - - if (subs->sync_endpoint) { - err = snd_usb_endpoint_configure(chip, subs->sync_endpoint); - if (err < 0) - return err; + } else { + if (subs->sync_endpoint) { + err = snd_usb_endpoint_configure(chip, subs->sync_endpoint); + if (err < 0) + return err; + } } return 0; -- cgit v1.2.3