28 Dec
2018
28 Dec
'18
6:21 a.m.
On Fri, Dec 28, 2018 at 12:45:49PM +0900, Takashi Sakamoto wrote:
I note that there're some levels of timestamp and autio timestamp. Additionally, audio timestamp is updated only in any hardware/software IRQs, thus it's not available with 'no-period-wakeup' runtime, FYI.
Oops. No, the audio timestamp can be updated in updating process of hardware pointer. A call of ioctl with SNDRV_PCM_IOCTL_STATUS and SNDRV_PCM_IOCTL_STATUS_EXT can return updated audio timestamp.
Regards
Takashi Sakamoto