snd_card_disconnect(9)

💖 snd_card_disconnect(9) — the Kernel API Manual bestie edit 💖

okay so welcome to the Kernel API Manual corner for snd_card_disconnect(9), where we keep every fact and add the sparkle. No cap, all the details are staying. 🫶

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🌸 NAME 🌸

snd_card_disconnect - disconnect all APIs from the file-operations (user space)

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✨ SYNOPSIS ✨

void snd_card_disconnect (struct snd_card *card );

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🎀 ARGUMENTS 🎀

• card — soundcard structure. That's the struct you're handing over, bestie.

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🦋 DESCRIPTION 🦋

Disconnects all APIs from the file-operations (user space). That's the whole assignment. It's giving "cut the user-space APIs loose from the file-operations" energy, and that is literally what the page says. 💅

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⭐ RETURN ⭐

The RETURN section says: Zero, otherwise a negative error code. So the value is zero, otherwise a negative error code. periodt. ✨

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⚠️ NOTE ⚠️

The current implementation replaces all active file->f_op with special dummy file operations (they do nothing except release). So bestie, the active file->f_op gets swapped for special dummy file operations, and those dummies do nothing except release. That's the current implementation — iconic, slightly unhinged, but official. 💀

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👑 SEE ALSO 👑

Kernel file ./sound/core/init.c:

• snd_device_alloc(9)
• snd_card_new(9)
• snd_devm_card_new(9)
• snd_card_free_on_error(9)
• snd_card_ref(9)
• snd_card_disconnect_sync(9)
• snd_card_free_when_closed(9)
• snd_card_free(9)
• snd_card_set_id(9)
• snd_card_add_dev_attr(9)
• snd_card_register(9)
• snd_component_add(9)
• snd_card_file_add(9)
• snd_card_file_remove(9)
• snd_power_ref_and_wait(9)
• snd_power_wait(9)

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cute sign-off: source/version is ./sound/core, date is October 2026, and the page is snd_card_disconnect(9) — bye bestie, go disconnect responsibly 💅