From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Mack Subject: [PATCH 3/3] ALSA: snd-usb: add delay quirk for "Playback Design" products Date: Sun, 17 Mar 2013 20:07:26 +0800 Message-ID: <1363522047-7515-4-git-send-email-zonque@gmail.com> References: <1363522047-7515-1-git-send-email-zonque@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail.zonque.de (svenfoo.org [82.94.215.22]) by alsa0.perex.cz (Postfix) with ESMTP id 8117826517C for ; Sun, 17 Mar 2013 13:07:44 +0100 (CET) In-Reply-To: <1363522047-7515-1-git-send-email-zonque@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: alsa-devel@alsa-project.org Cc: tiwai@suse.de, clemens@ladisch.de, Daniel Mack , demian@auraliti.com, ray@auraliti.com, andreas@akdesigninc.com List-Id: alsa-devel@alsa-project.org "Playback Design" products need a 50ms delay after setting the USB interface. Signed-off-by: Daniel Mack Reported-by: Andreas Koch --- sound/usb/pcm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index f94397b..c263991 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -350,6 +350,13 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) fmt->iface, fmt->altsetting); subs->interface = fmt->iface; subs->altset_idx = fmt->altset_idx; + + /* + * "Playback Design" products need a 50ms delay after setting the + * USB interface. + */ + if (le16_to_cpu(dev->descriptor.idVendor) == 0x23ba) + mdelay(50); } subs->data_endpoint = snd_usb_add_endpoint(subs->stream->chip, -- 1.7.10.4