| ALSA project - the C library reference
    | 
| Data Fields | |
| unsigned int | valid:1 | 
| unsigned int | actual_type:4 | 
| unsigned int | accuracy_report:1 | 
| unsigned int | accuracy | 
PCM audio timestamp report
| unsigned int snd_pcm_audio_tstamp_report_t::accuracy | 
up to 4.29s in ns units, will be packed in separate field 
 
| unsigned int snd_pcm_audio_tstamp_report_t::accuracy_report | 
0 if accuracy unknown, 1 if accuracy field is valid
| unsigned int snd_pcm_audio_tstamp_report_t::actual_type | 
actual type if hardware could not support requested timestamp
| unsigned int snd_pcm_audio_tstamp_report_t::valid | 
for backwards compatibility