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Dynamic Audio Power Management for Portable Devices — The Li…
https://www.kernel.org/doc/html/latest/sound/soc/dapm.html#:~:text=%20Dynamic%20Audio%20Power%20Management%20%28DAPM%29%20is%20designed,can%20easily%20co-exist%20with%20the%20other%20PM%20systems.
Dynamic Audio Power Management for Portable Devices …
https://www.kernel.org/doc/html/latest/sound/soc/dapm.html
Dynamic Audio Power Management (DAPM) is designed to allow portable Linux devices to use the minimum amount of power within the audio subsystem at all times. It is independent of other kernel PM and as such, can easily co-exist with the other PM systems. DAPM is also completely transparent to all user space applications as all power switching ...
Dynamic Audio Power Management
https://events.static.linuxfound.org/sites/events/files/slides/dapm.pdf
Using DAPM not only for audio – E.g. video processing pipelines Allows to model complex power relationships Doesn't suffer problems of classical power runtime power management – E.g. DAPM can handle cyclic dependencies – Finer grained resolution DAPM core …
DAPM - AlsaProject
https://www.alsa-project.org/main/index.php/DAPM
Dynamic Audio Power Management (DAPM) is designed to allow portable Linux devices to use the minimum amount of power within the audio subsystem at all times. It is independent of other kernel PM and as such, can easily co-exist with the other PM systems. DAPM is also completely transparent to all user space applications as all power switching is …
DAPM之二：audio paths与dapm kcontrol_AZURE-CSDN博客
https://blog.csdn.net/azloong/article/details/6334922
2、snd_soc_dapm_add_routes ()，该函数的注释值得一看：snd_soc_dapm_add_routes - Add routes between DAPM widgets. Connects 2 dapm widgets together via a named audio path. The sink is the widget receiving the audio signal, whilst the source is the sender of the audio signal. 以MIXER类型snd_soc_dapm_mixer为例，简单介绍调 …
ALSA声卡驱动的DAPM（一）-DPAM详解 - 云+社区 - 腾讯云
https://cloud.tencent.com/developer/article/1078002
一、DAPM简介：. DAPM是Dynamic Audio Power Management的缩写，直译过来就是动态音频电源管理的意思，DAPM是为了使基于linux的移动设备上的音频子系统，在任何时候都工作在最小功耗状态下。. DAPM对用户空间的应用程序来说是透明的，所有与电源相关的开关都在ASoc core中 ...
DAPM之二：audio paths与dapm kcontrol_tronteng的专栏-程序员 …
https://cxymm.net/article/tronteng/7355942
2、snd_soc_dapm_add_routes()，该函数的注释值得一看：snd_soc_dapm_add_routes - Add routes between DAPM widgets. Connects 2 dapm widgets together via a named audio path. The sink is the widget receiving the audio signal, whilst the source is the sender of the audio signal. 以MIXER类型snd_soc_dapm_mixer为例，简单介绍调用 ...
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