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Commit 29348065 authored by Jussi Laako's avatar Jussi Laako Committed by Greg Kroah-Hartman
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ALSA: hiface: Fix M2Tech hiFace driver sampling rate change 



commit 995c6a7fd9b9212abdf01160f6ce3193176be503 upstream.

Sampling rate changes after first set one are not reflected to the
hardware, while driver and ALSA think the rate has been changed.

Fix the problem by properly stopping the interface at the beginning of
prepare call, allowing new rate to be set to the hardware. This keeps
the hardware in sync with the driver.

Signed-off-by: default avatarJussi Laako <jussi@sonarnerd.net>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent d0ba0f6a

sound/usb/hiface/pcm.c

+2 −0
Original line number Diff line number Diff line
@@ -445,6 +445,8 @@ static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub) 


	mutex_lock(&rt->stream_mutex);



	hiface_pcm_stream_stop(rt);



	sub->dma_off = 0;

	sub->period_off = 0;