参考：
简介：https://blog.csdn.net/azloong/article/details/6932272#
driver例子：https://elixir.bootlin.com/linux/v5.4.240/source/sound/pci/rme9652/hdsp.c#L4906
hwdep API:https://www.alsa-project.org/alsa-doc/alsa-lib/group___hw_dep.html
alsa core hwdep:https://elixir.bootlin.com/linux/v5.4.240/source/sound/core/hwdep.c#L351