msi_lib_init_dev_msi_info(9)

🎀 NAME 🎀

msi_lib_init_dev_msi_info — Domain info setup for MSI domains

okay so this is the manual page for msi_lib_init_dev_msi_info(9), and it's literally all about getting your MSI domain info set up correctly 💅✨

✨ SYNOPSIS ✨

bool msi_lib_init_dev_msi_info (struct device *dev , struct irq_domain
*domain , struct irq_domain *real_parent , struct msi_domain_info *info
);

🫶 ARGUMENTS 🫶

• dev — The device for which the domain is created for 👑
• domain — The domain providing this callback 🌸
• real_parent — The real parent domain of the domain to be initialized which might be a domain built on top of domain or domain itself 🦋
• info — The domain info for the domain to be initialize 🎀

💖 DESCRIPTION 💖

This function is to be used for all types of MSI domains above the root parent domain and any intermediates. The topmost parent domain specific functionality is determined via real_parent. no cap, that's the whole vibe check right there ✨

All intermediate domains between the root and the device domain must have either msi_parent_ops.init_dev_msi_info = msi_parent_init_dev_msi_info or invoke it down the line. fr fr, don't skip this part bestie 😭🫶

🌈 SEE ALSO 🌈

Kernel file ./drivers/irqchip/irq-msi-lib.c msi_lib_irq_domain_select(9)

and that's the page, bestie 💖 source is ./drivers/irqchip, version/date is October 2026 — iconic, slay, periodt 🎀✨👑