26 Jun
2017
26 Jun
'17
3:41 p.m.
On Mon, 26 Jun 2017 15:27:21 +0200, Takashi Sakamoto wrote:
+In a design of ALSA PCM core, data transmission is abstracted as PCM substream. +Applications manage PCM substream to maintain data transmission for PCM frames. +Before stating the data transmission, applications need to configure PCM
starting
+This structure includes several types of parameters. Applications set preferable +value to these parameters, then execute ioctl(2) with SNDRV_PCM_IOCTL_HW_REFINE +or SNDRV_PCM_IOCTL_HW_PARAMS. The former is used just for querying available +set of parameters.
REFINE isn't only for querying but may also refine, i.e. partially change the parameters.
+Pamraeters in the buffer are changed according to
Parameters
thanks,
Takashi