• Takashi Iwai's avatar
    ALSA: pcm - Add logging of hwptr updates and interrupt updates · cedb8118
    Takashi Iwai authored
    
    
    Added the logging functionality to xrun_debug to record the hwptr
    updates via snd_pcm_update_hw_ptr() and snd_pcm_update_hwptr_interrupt(),
    corresponding to 16 and 8, respectively.
    
    For example,
    	# echo 9 > /proc/asound/card0/pcm0p/xrun_debug
    will record the position and other parameters at each period interrupt
    together with the normal XRUN debugging.
    
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    cedb8118