tascam_pcm_trigger(9)

💖 tascam_pcm_trigger(9) 💖

okay so this is the Kernel API Manual page for tascam_pcm_trigger, and she is literally here to start and stop PCM streams. bestie, hydrate, because kernel details are about to be served 💅✨

🌸 NAME 🌸

tascam_pcm_trigger — Triggers the start or stop of PCM streams.

🎀 SYNOPSIS 🎀

int tascam_pcm_trigger (struct snd_pcm_substream *substream , int cmd );

🦋 ARGUMENTS 🦋

• substream — The ALSA PCM substream. yes, the ALSA one, no fake ones allowed 🫶
• cmd — The trigger command (e.g., SNDRV_PCM_TRIGGER_START). this is the lil instruction that says what kind of trigger moment we're having, iykyk ✨

🔥 DESCRIPTION 🔥

okay so tascam_pcm_trigger handles starting and stopping of playback and capture streams by submitting or killing the associated URBs. that's the whole job, and she does it. URBs get submitted, URBs get killed, PCM streams get triggered — iconic behavior, no cap 🌈💀

⭐ RETURN ⭐

0 on success, or a negative error code on failure. so 0 is the slay outcome, and negative means the kernel is giving "not today" energy 😭

👑 SEE ALSO 👑

• Kernel file ./sound/usb/usx2y/us144mkii_pcm.h var tascam_pcm_hw(9)
• var tascam_playback_ops(9)
• var tascam_capture_ops(9)
• playback_urb_complete(9)
• feedback_urb_complete(9)
• capture_urb_complete(9)
• tascam_stop_pcm_work_handler(9)
• tascam_init_pcm(9)
• us144mkii_configure_device_for_rate(9)
• process_playback_routing_us144mkii(9)
• process_capture_routing_us144mkii(9)
• tascam_pcm_hw_params(9)
• tascam_pcm_hw_free(9)
• tascam_capture_work_handler(9)

xoxo, ur kernel bestie 💜 — source/version: ./sound/usb/usx2y, date: October 2026.