Hi,

I just noticed that the sys/class entry for the jack is not being created, in my case for headset jack in sdp3430 machine driver.

When creating the SoC jack, the soc-jack mechanism creates a new generic jack by calling snd_jack_new function. In that function, a new sound device is created representing the jack device. But in the particular case of jacks not belonging to a codec, they never get registered. A jack device in a codec driver gets registered because codec when initializing the SoC card (snd_soc_init_card) registers the sound card, and the sound card registers all sound devices added to it, among them the jack device.

In the machine driver, the soc jack is created after the codec has been initialized and consequently all sound devices attached to the card (till that point) are already registered. Because of that, the jack device is created but not registered.

I'm registering the jack device after it's created (in function snd_jack_new) and now I get the sys/class entry for the headset jack in my machine driver. What do you think about that solution?

-Misa