virtsnd_chmap_add_ctls(9)

🦋 virtsnd_chmap_add_ctls(9) 🦋

okay so welcome to the Kernel API Manual, bestie 💖 this page is all about virtsnd_chmap_add_ctls, and it's giving “create an ALSA control for channel maps” energy. no cap. 🎀

💅 NAME 💅

virtsnd_chmap_add_ctls — literally creates an ALSA control for channel maps. periodt. ✨

🌸 SYNOPSIS 🌸

int virtsnd_chmap_add_ctls (struct snd_pcm *pcm , int direction , struct
       virtio_pcm_stream *vs );

🫶 ARGUMENTS 🫶

• pcm — the ALSA PCM device. that's the one, bestie.
• direction — the PCM stream direction, written as SNDRV_PCM_STREAM_XXX. keep it exactly like that.
• vs — the VirtIO PCM stream.

🌈 CONTEXT 🌈

Context vibe check: any context. literally any context, bestie. 💅

🔥 RETURN 🔥

• 0 on success. slay. 👑
• -errno on failure. 😭

🦋 SEE ALSO 🦋

• Kernel file ./sound/virtio/virtio_chmap.c
• virtsnd_chmap_parse_cfg(9)
• virtsnd_chmap_build_devs(9)

kisses and bye, bestie 👋💖 source/version: ./sound/virtio, date: October 2026, signed virtsnd_chmap_add_ctls(9) ✨🫶