Enabling tstamp in proc status file externally

Hi,

Please is there any way to enable the tstamp in stream status without modifying the client calling the alsa-lib API? I wanted to measure samplerate ratio between soundcards using data in their status proc files (comparing advancement of tstamp vs. hw_ptr). The method seems to work quite good, but some clients enable the stream status tstamp (e.g. pulseaudio) and some don't (e.g. sox, aplay), resulting in zeros in the status proc file.

Thanks a lot for any help or hint.

Best regards,

Pavel.