原文:ALSA driver---register platform

参考: https: elixir.bootlin.com linux v . . source sound soc soc core.c L https: blog.csdn.net DroidPhone article details platform通过调用snd soc register platform来注册。snd soc register platform 该函数用于注册一个snd ...

2020-04-04 15:56 0 628 推荐指数:

查看详情

ALSA driver---register codec

参考: 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
模块驱动调试记录 ——platform_driver_register

当前module_init中使用 platform_driver_register(&dev_driver)注册了设备驱动,在 /sys/bus/platform/drivers 生成了以dev_driver->driver.name命名的驱动分支; 但是发现没有调用probe函数 ...

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框架如下图: Asoc分为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

参考: 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

当app在调用snd_pcm_writei时,alsa core将app传来的数据搬到HW buffer(即DMA buffer)中,alsa driver从HW buffer中读取数据传输到硬件播放。 ALSA buffer是采用ring buffer来实现的。ring buffer有多个HW ...

Wed Dec 21 04:21:00 CST 2016 0 1861
 
粤ICP备18138465号  © 2018-2025 CODEPRJ.COM