[alsa-devel] how to update hw_ptr and appl_ptr

Zhen Fu fuzh at marvell.com
Tue Jun 26 11:37:54 CEST 2012

Yes, I know this. I want to know how about updated by snd_pcm_update_hw_ptr0.

Best Regards,
Zhen Fu

-----Original Message-----
From: Clemens Ladisch [mailto:clemens at ladisch.de] 
Sent: Tuesday, June 26, 2012 5:35 PM
To: Zhen Fu
Cc: alsa-devel at alsa-project.org
Subject: Re: [alsa-devel] how to update hw_ptr and appl_ptr

Zhen Fu wrote:
> I recently look the function snd_pcm_update_hw_ptr0 want to  find how
> to update status->hw_ptr and control->appl_ptr.

status->hw_ptr is updated by snd_pcm_update_hw_ptr0.  control->appl_ptr
is updated by snd_pcm_lib_write1.

Why are you asking?


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