input_ff_destroy(9)

💖 input_ff_destroy 💖

okay so this is a page from the Kernel API Manual (section 9, kernel API girlies rise) and it's about input_ff_destroy — literally just frees the force feedback portion of an input device. tiny function, big "cleanup era" energy. let's get into it 🎀

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✨ SYNOPSIS ✨

void input_ff_destroy (struct input_dev *dev );

that's it. that's the whole signature. no cap. 🦋

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🌸 ARGUMENTS 🌸

• dev — the input device that supports force feedback. that's the one you're handing over. it's giving "here bestie, take the wheel" 🫶

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💅 DESCRIPTION 💅

okay so real talk: you only need this function in the error path. that's the whole vibe. 🐛

because the input core is a whole independent queen and will automatically free the force feedback structures when the device is destroyed. so if you're out here calling input_ff_destroy on the normal happy path, that's not it — the core already handles it, and you're just doing the most. 💀

error path only. periodt. ✨

lowkey important: this is a cleanup-for-the-oopsie-case function, not a "call it whenever" function. the input core's got the main character energy for the normal teardown. 👑

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/input/ff-core.c
• input_ff_upload(9)
• input_ff_erase(9)
• input_ff_event(9)
• input_ff_create(9)

go read the whole friend group, they're all iconic fr fr 🌈

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mwah 💋 that's the page! brought to you from ./drivers/input, dated October 2026, and yeah — input_ff_destroy(9), we stan a low-effort-but-essential cleanup bestie. slay, stay freed, bye! 💜🧚