ipa_interrup...late_suspend(9)

💅 ipa_interrup...late_suspend(9)

ok so bestie, welcome to the Kernel API Manual ✨ — yes that Kernel API Manual, the one that runs the literal phone in your pocket. we're talking about ipa_interrupt_simulate_suspend today and honestly? she's a little drama queen with a very specific job 🎀

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✨ NAME ✨

ipa_interrupt_simulate_suspend — Simulate TX_SUSPEND IPA interrupt 🦋

like, she fakes an interrupt. on purpose. for science. for hardware reasons. no cap 💅

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🌸 SYNOPSIS 🌸

void ipa_interrupt_simulate_suspend(struct ipa_interrupt *interrupt);

that's it. one argument. she returns void, so don't go looking for a return value, there isn't one, periodt 💀

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🫶 ARGUMENTS 🫶

• interrupt — the IPA interrupt structure 💖 the lil data struct she needs to do her thing

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👑 DESCRIPTION 👑

okay so this function literally calls the TX_SUSPEND interrupt handler — as if such an interrupt had actually been signaled 🔥 like, it never happened, but we're pretending it did. method acting. main character energy 🎭✨

why tho? because of a hardware quirk 😭 and bestie, hardware quirks are the worst. this workaround is needed specifically when aggregation is active on an endpoint and its underlying channel is suspended — that combo makes the hardware act up, so we fake the interrupt to smooth it over. iykyk 🧚

ngl this is a workaround, not a normal code path — she exists purely to appease the silicon 🌈

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/ipa/ipa_interrupt.h 🍓
• ipa_interrupt_suspend_enable(9)
• ipa_interrupt_suspend_disable(9)
• ipa_interrupt_enable(9)
• ipa_interrupt_disable(9)
• ipa_interrupt_irq_enable(9)
• ipa_interrupt_irq_disable(9)
• ipa_interrupt_config(9)
• ipa_interrupt_deconfig(9)
• ipa_interrupt_init(9)
• ipa_interrupt_exit(9)

the whole interrupt friend group 🫶 go read them too, they're all iconic in their own way 👑

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aaaand that's the page!! this one lives in ./drivers/net/ipa and the version stamp is dated October 2026 🌸 so go forth, simulate that suspend, and slay responsibly bestie 💖✨🎀