dw_pcie_ep_r...irq_doorbell(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual page for dw_pcie_ep_r...irq_doorbell(9) — yes, that’s the title, and we’re folding the manual name right in here like a little name tag at a party 🎀.

• dw_pcie_ep_raise_msix_irq_doorbell — Raise MSI-X to the host using Doorbell method. slay ✨

🌸 SYNOPSIS 🌸

int dw_pcie_ep_raise_msix_irq_doorbell (struct dw_pcie_ep *ep , u8
       func_no , u16 interrupt_num );

🎀 ARGUMENTS 🎀

• ep — DWC EP device. that’s the main character object 💅
• func_no — Function number of the endpoint device. very “know your function” energy 🫶
• interrupt_num — Interrupt number to be raised. this is the interrupt we’re hyping up 🔥

🦋 RETURN 🦋

Returns 0 if success, errno otherwise. literally that simple — success gets a 0, everything else gets an errno 😭

🔥 SEE ALSO 🔥

• Kernel file: ./drivers/pci/controller/dwc/pcie-designware-ep.c
• 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_msi_irq(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)

iykyk — go read the friends, they’re all linked and iconic 👑

okay bye bestie 🫶 — this page’s source/version is ./drivers/pci/controller/dwc, and it’s dated October 2026. mwah 💋