parport_wait_event(9)

🦋 parport_wait_event(9) 🦋

okay so bestie, welcome to the Kernel API Manual — today’s main character is parport_wait_event(9), and it’s literally all about waiting for an event on a parallel port. no cap, let’s get into it 💅

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🌸 NAME 🌸

parport_wait_event — wait for an event on a parallel port ✨

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💖 SYNOPSIS 💖

int parport_wait_event (struct parport *port , signed long timeout );

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🎀 ARGUMENTS 🎀

• port — the port to wait on 🫶
• timeout — how long to wait, in jiffies ⏳

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💅 DESCRIPTION 💅

So this function waits for up to timeout jiffies for an interrupt to occur on a parallel port. That’s the whole vibe. If the port timeout is set to zero, it returns immediately — like, no waiting around, periodt.

If an interrupt occurs before the timeout period elapses, this function returns zero immediately. Slay. If it times out, it returns one. And if you get an error code less than zero? That indicates an error — most likely a pending signal — and the calling code should finish what it’s doing as soon as it can. fr fr, wrap it up 😭

error code less than zero = error, bestie. most likely a pending signal. the caller should finish what it’s doing as soon as it can.

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🌈 SEE ALSO 🌈

Kernel file ./drivers/parport/ieee1284.c:

• parport_poll_peripheral(9)
• parport_wait_peripheral(9)
• parport_negotiate(9)
• parport_write(9)
• parport_read(9)
• parport_set_timeout(9)

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okay that’s the whole page, bestie — signing off from ./drivers/parport, dated October 2026, mwah 💋🫶