msi_get_domain_info(9)

💅 msi_get_domain_info(9)

okay so bestie, welcome to the Kernel API Manual ✨ — this one's a tiny little function page and honestly it's giving "one-line baddie" energy 🎀. Yes, the page header literally just says msi_get_domain_info(9) twice, we love a consistent queen 💅.

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✨ NAME ✨

msi_get_domain_info — get the MSI interrupt domain info for @domain 🦋

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🌸 SYNOPSIS 🌸

struct msi_domain_info * msi_get_domain_info (struct irq_domain *domain
);

no cap, that's the whole signature — one arg, one pointer back 😌

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💖 ARGUMENTS 💖

• domain — the interrupt domain you're pulling data from 🫶 literally the thing you hand over so it can tell you stuff.

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⭐ RETURN ⭐

it returns the pointer to the msi_domain_info stored in domain->host_data 👑 that's it, that's the whole vibe. iykyk 💫

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🦋 SEE ALSO 🦋

okay this is the part where the page goes full main-character and lists, like, everyone in the msi squad 💀 — no skipping, here's the whole group chat, fr fr:

• Kernel file ./kernel/irq/msi.c
• struct msi_device_data(9)
• struct msi_ctrl(9)
• msi_alloc_desc(9)
• msi_domain_insert_msi_desc(9)
• msi_domain_free_msi_descs_range(9)
• msi_domain_add_simple_msi_descs(9)
• msi_setup_device_data(9)
• __msi_lock_descs(9)
• __msi_unlock_descs(9)
• msi_domain_first_desc(9)
• msi_next_desc(9)
• msi_domain_get_virq(9)
• msi_device_populate_sysfs(9)
• msi_device_destroy_sysfs(9)
• msi_domain_set_affinity(9)
• msi_create_irq_domain(9)
• msi_create_parent_irq_domain(9)
• msi_parent_init_dev_msi_info(9)
• msi_create_device_irq_domain(9)
• msi_remove_device_irq_domain(9)
• msi_match_device_irq_domain(9)
• msi_domain_alloc_irqs_range_locked(9)
• msi_domain_alloc_irqs_range(9)
• msi_domain_alloc_irqs_all_locked(9)
• msi_domain_alloc_irq_at(9)
• msi_device_domain_alloc_wired(9)
• msi_domain_free_irqs_range_locked(9)
• msi_domain_free_irqs_range(9)
• msi_domain_free_irqs_all_locked(9)
• msi_domain_free_irqs_all(9)
• msi_device_domain_free_wired(9)
• msi_device_has_isolated_msi(9)

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and that's the page!! 💜 this lil icon lives over in ./kernel/irq and the version stamp says October 2026 🌈 so go forth, get your domain info, and slay 🎀✨💅