[RFC][PATCH v3 1/4] alsa: jack: implement software jack injection via debugfs
Jaroslav Kysela
perex at perex.cz
Mon Jan 4 16:04:03 CET 2021
Dne 28. 12. 20 v 9:00 Hui Wang napsal(a):
> We want to perform remote audio auto test, need the audio jack to
> change from plugout to plugin or vice versa by software ways.
>
> Here the design is creating a sound-core root folder in the debugfs
> dir, and each sound card will create a folder cardN under sound-core,
> then the sound jack will create folders by jack_ctrl->ctrl->id.name,
> and will create 2 file nodes jackin_inject and sw_inject_enable in
> the folder, this is the layout of folder on a machine with 2 sound
> cards:
> $tree $debugfs_mount_dir/sound-core
> sound-core/
> ├── card0
> │ ├── HDMI!DP,pcm=10 Jack
> │ │ ├── jackin_inject
> │ │ └── sw_inject_enable
> + sound_core_debugfs_root = debugfs_create_dir("sound-core", NULL);
I would just use "sound" directory name here. Why "core" suffix?
Jaroslav
--
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.
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