ALSA driver---register platform
platform通過調用snd_soc_register_platform來注冊。snd_soc_register ...
原文：ALSA driver---register CPU DAI
參考： https: elixir.bootlin.com linux v . . source sound soc soc core.c L https: blog.csdn.net DroidPhone article details CPU DAI通過調用snd soc register component進行注冊。 在snd soc register component函數內主要創建和分配 ...
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ALSA driver---register codec
參考： https://elixir.bootlin.com/linux/v4.9.218/source/sound/soc/soc-core.c#L3314 https://blog.csdn. ...
ALSA driver--Asoc
https://blog.csdn.net/zyuanyun/article/details/59170418 https://blog.csdn.net/whshiyun/article/details/80889838 ALSA Asoc框架如下圖： Asoc分為machine ...
ALSA driver---DPCM
https://www.kernel.org/doc/html/v4.11/sound/soc/dpcm.html Description Dynamic PCM allows an ALSA PCM device to digitally route its PCM audio ...
ALSA driver---DAPM flow
參考： https://elixir.bootlin.com/linux/v4.9.218/source/sound/soc/soc-dapm.c#L804 https://blog.csdn.n ...
ALSA driver--HW Buffer
當app在調用snd_pcm_writei時，alsa core將app傳來的數據搬到HW buffer（即DMA buffer）中，alsa driver從HW buffer中讀取數據傳輸到硬件播放。 ALSA buffer是采用ring buffer來實現的。ring buffer有多個HW ...
driver_register()函數解析
driver_register()函數解析 /** * driver_register - register driver with bus * @drv: driver to register * * We pass off most of the work ...
ALSA driver--PCM實例創建框架
在介紹PCM 之前，我們先給出創建PCM實例的框架。 #include <sound/pcm.h> .... /* hardware definition */ sta ...