From c744dff260e9efb1080d1e823e588f85176a057b Mon Sep 17 00:00:00 2001 From: Robert Krakora Date: Sun, 8 Feb 2009 13:10:39 -0300 Subject: [PATCH] V4L/DVB (10519): em28xx: Fix for em28xx audio startup Essentially if a snd_em28xx_capture_trigger() stop followed by a snd_em28xx_capture_trigger() start would not yield any data because there was some logic put in with an adev->shutdown variable which did not seem warranted in my humble opinion. It would cause snd_em28xx_capture_trigger start never to start up the audio stream until the device was closed and reopened again. Upon re-opening the device adev->shutdown is reset and audio data would again flow. Signed-off-by: Robert Krakora Signed-off-by: Douglas Schilling Landgraf Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-audio.c | 12 +----------- drivers/media/video/em28xx/em28xx.h | 2 +- 2 files changed, 2 insertions(+), 12 deletions(-) diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c index c698d3c9690f..52c6657d61cf 100644 --- a/drivers/media/video/em28xx/em28xx-audio.c +++ b/drivers/media/video/em28xx/em28xx-audio.c @@ -152,9 +152,6 @@ static void em28xx_audio_isocirq(struct urb *urb) } urb->status = 0; - if (dev->adev.shutdown) - return; - status = usb_submit_urb(urb, GFP_ATOMIC); if (status < 0) { em28xx_errdev("resubmit of audio urb failed (error=%i)\n", @@ -340,13 +337,6 @@ static int snd_em28xx_pcm_close(struct snd_pcm_substream *substream) em28xx_audio_analog_set(dev); mutex_unlock(&dev->lock); - if (dev->adev.users == 0 && dev->adev.shutdown == 1) { - dprintk("audio users: %d\n", dev->adev.users); - dprintk("disabling audio stream!\n"); - dev->adev.shutdown = 0; - dprintk("released lock\n"); - em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0); - } return 0; } @@ -399,7 +389,7 @@ static int snd_em28xx_capture_trigger(struct snd_pcm_substream *substream, em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 1); return 0; case SNDRV_PCM_TRIGGER_STOP: - dev->adev.shutdown = 1; + em28xx_cmd(dev, EM28XX_CAPTURE_STREAM_EN, 0); return 0; default: return -EINVAL; diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 3d94afb55b56..11f0db650261 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -423,7 +423,7 @@ struct em28xx_audio { unsigned int hwptr_done_capture; struct snd_card *sndcard; - int users, shutdown; + int users; enum em28xx_stream_state capture_stream; spinlock_t slock; }; -- 2.20.1