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Commit 97f8d3b6 authored by Daniel Mack's avatar Daniel Mack Committed by Takashi Iwai
Browse files

ALSA: snd-usb: fix stream info output in /proc 



Set some substream struct members to make the proc interface code work
again.

Signed-off-by: default avatarDaniel Mack <zonque@gmail.com>
Reported-by: default avatarFelix Homann <linuxaudio@showlabor.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 4f7c39dc

sound/usb/pcm.c

+12 −0
Original line number Diff line number Diff line
@@ -474,6 +474,11 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, 
		mutex_unlock(&subs->stream->chip->shutdown_mutex);

	}



	if (ret == 0) {

		subs->interface = fmt->iface;

		subs->altset_idx = fmt->altset_idx;

	}



	return ret;

}
@@ -1123,13 +1128,16 @@ static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substrea 
	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:

		subs->data_endpoint->prepare_data_urb = prepare_playback_urb;

		subs->data_endpoint->retire_data_urb = retire_playback_urb;

		subs->running = 1;

		return 0;

	case SNDRV_PCM_TRIGGER_STOP:

		stop_endpoints(subs, 0, 0, 0);

		subs->running = 0;

		return 0;

	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:

		subs->data_endpoint->prepare_data_urb = NULL;

		subs->data_endpoint->retire_data_urb = NULL;

		subs->running = 0;

		return 0;

	}
@@ -1148,15 +1156,19 @@ int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, int c 
			return err;



		subs->data_endpoint->retire_data_urb = retire_capture_urb;

		subs->running = 1;

		return 0;

	case SNDRV_PCM_TRIGGER_STOP:

		stop_endpoints(subs, 0, 0, 0);

		subs->running = 0;

		return 0;

	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:

		subs->data_endpoint->retire_data_urb = NULL;

		subs->running = 0;

		return 0;

	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:

		subs->data_endpoint->retire_data_urb = retire_capture_urb;

		subs->running = 1;

		return 0;

	}