原文:ALSA driver---register platform

參考: https: elixir.bootlin.com linux v . . source sound soc soc core.c L https: blog.csdn.net DroidPhone article details platform通過調用snd soc register platform來注冊。snd soc register platform 該函數用於注冊一個snd ...

2020-04-04 15:56 0 628 推薦指數:

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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. ...

Mon Apr 06 22:33:00 CST 2020 0 783
模塊驅動調試記錄 ——platform_driver_register

當前module_init中使用 platform_driver_register(&dev_driver)注冊了設備驅動,在 /sys/bus/platform/drivers 生成了以dev_driver->driver.name命名的驅動分支; 但是發現沒有調用probe函數 ...

Wed Feb 27 19:26:00 CST 2019 0 2515
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 ...

Sat Dec 24 05:03:00 CST 2016 0 2653
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 ...

Sun Mar 22 23:57:00 CST 2020 0 785
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 ...

Sun Apr 12 23:19:00 CST 2020 0 641
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 ...

Wed Dec 21 04:21:00 CST 2016 0 1861
 
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