uaudio_event_ring_setup(9)

🎀 uaudio_event_ring_setup(9) 🎀

okay bestie, this one is from the Kernel API Manual and it's giving "event ring setup, but make it kernel-core." lowkey iconic, highkey specific. 💖

✨ NAME ✨

uaudio_event_ring_setup — fetch and populate event ring params. that's the whole assignment: fetch the params, populate the params. periodt. 🫶

🌸 SYNOPSIS 🌸

int uaudio_event_ring_setup (struct snd_usb_substream *subs , int
       card_num , struct mem_info_v01 *mem_info );

💅 ARGUMENTS 💅

• subs — usb substream. literally the usb substream bestie. 🦋
• card_num — uadev index. yes queen, index. ✨
• mem_info — QMI response info. it's the QMI response info, no cap. 💜

🔥 DESCRIPTION 🔥

So here's the tea: this function registers a secondary interrupter to XHCI, then fetches the event buffer info and populates the information into the QMI response. that's it, that's the whole plot. 💀✨

🌈 SEE ALSO 🌈

Kernel file: ./sound/usb/qcom/qc_audio_offload.c — and the whole friend group is here too:

• uaudio_iommu_unmap(9)
• uaudio_iommu_map_pa(9)
• uaudio_dev_intf_cleanup(9)
• uaudio_event_ring_cleanup_free(9)
• disable_audio_stream(9)
• uaudio_sideband_notifier(9)
• qmi_bye_cb(9)
• qmi_svc_disconnect_cb(9)
• enable_audio_stream(9)
• uaudio_transfer_buffer_setup(9)
• uaudio_endpoint_setup(9)
• uaudio_populate_uac_desc(9)
• prepare_qmi_response(9)
• handle_uaudio_stream_req(9)
• qc_usb_audio_offload_init_qmi_dev(9)
• qc_usb_audio_offload_probe(9)
• qc_usb_audio_cleanup_qmi_dev(9)
• qc_usb_audio_offload_disconnect(9)
• qc_usb_audio_offload_suspend(9)

signed, sealed, delivered from ./sound/usb/qcom, dated October 2026 💅💖 mwah!