snd_mpu401_u...interrupt_tx(9)

📦 version 7.3.1, in nixpkgs unstable

💖 snd_mpu401_uart_interrupt_tx 💖

Okay so bestie, we're in the Kernel API Manual today and the star of the show is snd_mpu401_uart_interrupt_tx — literally the generic MPU401-UART transmit irq handler. No cap, that's the whole vibe. Let's get into it 🎀

✨ NAME ✨

snd_mpu401_uart_interrupt_tx — the generic MPU401-UART transmit irq handler, and yeah she's iconic for it 👑

🦋 SYNOPSIS 🦋

irqreturn_t snd_mpu401_uart_interrupt_tx (int irq , void *dev_id );

That's the whole signature, bestie — copy it exactly, don't go freelancing with the spacing, iykyk 💅

🌸 ARGUMENTS 🌸

  • irq — the irq number. That's it, that's the whole thing, she's just a number 🧚
  • dev_id — the mpu401 instance. This is your girl, the actual device we're out here servicing 🫶

⭐ DESCRIPTION ⭐

So what does she do? She processes the interrupt for MPU401-UART output. That's the whole description and honestly? She ate. Clean, simple, no notes ✨

🔥 RETURN 🔥

  • IRQ_HANDLED — if the interrupt was handled 💖 (the good ending)
  • IRQ_NONE — otherwise 😭 (we tried, we genuinely tried)

🌈 SEE ALSO 🌈

Go read those too, they're the supporting cast and they deserve their flowers 🌸💜

Bestie heads up: the return value is literally the whole point of this function — if you mess up whether it's IRQ_HANDLED or IRQ_NONE, the kernel's gonna have opinions. Main character energy requires accuracy 💀

Fr fr, that's the whole page — brought to you by ./sound/drivers/mpu401, dated October 2026, and formatted as snd_mpu401_u...interrupt_tx(9) for the Kernel API Manual. Slay, go handle those interrupts responsibly 💅✨

📦 where this page comes from