tascam_pcm_hw_params(9)

💅 tascam_pcm_hw_params(9) 💅

okay bestie, so this page lives in the Kernel API Manual, and it's literally called tascam_pcm_hw_params. grab a lil snack, we're configuring hardware parameters for PCM streams 🎀

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✨ NAME ✨

tascam_pcm_hw_params — configures hardware parameters for PCM streams. that's the whole vibe, no cap ✨

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🌸 SYNOPSIS 🌸

int tascam_pcm_hw_params (struct snd_pcm_substream *substream , struct
snd_pcm_hw_params *params );

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🦋 ARGUMENTS 🦋

• substream — the ALSA PCM substream. your main character 🫶
• params — the hardware parameters to apply. these are the settings we're actually pushing through 💅

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💖 DESCRIPTION 💖

okay so here's what she does. this function allocates pages for the PCM buffer — yes, actual pages, she's building the buffer's whole housing situation 🏠✨

then, for playback streams specifically, she selects the appropriate feedback patterns based on the requested sample rate. iykyk 🎧

and finally, if the sample rate has changed, she also configures the device hardware for the selected sample rate. so the hardware gets the memo too, not just the software. slay 🌈

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⭐ RETURN ⭐

0 on success 🎉 — or a negative error code on failure 😭 (rude, but okay).

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👑 SEE ALSO 👑

like, go read these too bestie, they're the whole friend group:

• 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_free(9)
• tascam_pcm_trigger(9)
• tascam_capture_work_handler(9)

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fr fr, that's every single one of them, don't @ me 💀

okay that's the page!! it came from ./sound/usb/usx2y, it's dated October 2026, and it's tascam_pcm_hw_params(9) — periodt 💜🧚‍♀️