dw_pcie_ep_raise_msi_irq(9)

✨ dw_pcie_ep_raise_msi_irq ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a little function from the DesignWare PCIe endpoint world, and honestly? she's giving "small but mighty." Let's get into it 🎀

---

🌸 NAME 🌸

dw_pcie_ep_raise_msi_irq — literally just Raise MSI IRQ to the host 🦋 no cap, that's the whole job.

---

🌈 SYNOPSIS 🌈

int dw_pcie_ep_raise_msi_irq (struct dw_pcie_ep *ep , u8 func_no , u8
interrupt_num );

like yes, she takes three things and hands you back an int ✨

---

💖 ARGUMENTS 💖

• ep — the DWC EP device, your main character 🫶
• func_no — Function number of the endpoint, iykyk 🧚
• interrupt_num — the Interrupt number to be raised ⭐ (yes, that's the one 🔥)

---

👑 RETURN 👑

Returns 0 if success, errno otherwise. periodt. 💀

ngl bestie, always vibe check that return value — 0 is the slay, anything else is the errno situation 🙈

---

💜 SEE ALSO 💜

• Kernel file ./drivers/pci/controller/dwc/pcie-designware-ep.c — go read the source, it ate 🍓
• dw_pcie_ep_get_func_from_ep(9)
• dw_pcie_ep_reset_bar(9)
• dw_pcie_ep_raise_intx_irq(9)
• dw_pcie_ep_raise_msix_irq_doorbell(9)
• dw_pcie_ep_raise_msix_irq(9)
• dw_pcie_ep_cleanup(9)
• dw_pcie_ep_deinit(9)
• dw_pcie_ep_init_registers(9)
• dw_pcie_ep_linkup(9)
• dw_pcie_ep_linkdown(9)
• dw_pcie_ep_init(9)

the whole friend group, fr fr 😭💅

---

okay that's the page!! sourced from ./drivers/pci/controller/dwc, dated October 2026, and it's the dw_pcie_ep_raise_msi_irq(9) manual page — mwah, go raise some IRQs bestie 💖✨🎀