Re: [PATCH v21 33/39] ASoC: usb: Fetch ASoC sound card information

+/**

• • snd_soc_usb_device_offload_available() - Fetch BE DAI link sound card
• • @dev: the device to find in SOC USB
• • Finds the component linked to a specific SOC USB instance, and returns
• • the sound card number for the platform card supporting offloading.
• */

+int snd_soc_usb_device_offload_available(struct device *dev) +{

• struct snd_soc_usb *ctx;
• ctx = snd_soc_find_usb_ctx(dev);
• if (!ctx)

• return -ENODEV;
  

• return ctx->component->card->snd_card->number;

+}

Presumably there's a notification to help applications discard this information on removal?