pci_epc_get_first_free_bar(9)

💖 NAME 💖

okay bestie, welcome to pci_epc_get_first_free_bar(9) — yes, that's the title, and the manual name is Kernel API Manual. The function's whole gig is: pci_epc_get_first_free_bar — helper to get first unreserved BAR ✨

✨ SYNOPSIS ✨

enum pci_barno pci_epc_get_first_free_bar (const struct pci_epc_features
*epc_features );

🎀 ARGUMENTS 🎀

• epc_features — the pci_epc_features structure that holds the reserved bar bitmap. She's literally carrying the receipts for which BARs are reserved 💅

🦋 DESCRIPTION 🦋

Invoke this when you need to get the first unreserved BAR that can be used by the endpoint function. That's the vibe: first free BAR, no cap 🫶

🌈 SEE ALSO 🌈

Kernel file: ./drivers/pci/endpoint/pci-epc-core.c — and here's the whole squad, bestie:

• pci_epc_put(9)
• pci_epc_get(9)
• pci_epc_get_next_free_bar(9)
• pci_epc_get_features(9)
• pci_epc_get_aux_resources_count(9)
• pci_epc_get_aux_resources(9)
• pci_epc_stop(9)
• pci_epc_start(9)
• pci_epc_raise_irq(9)
• pci_epc_map_msi_irq(9)
• pci_epc_get_msi(9)
• pci_epc_set_msi(9)
• pci_epc_get_msix(9)
• pci_epc_set_msix(9)
• pci_epc_unmap_addr(9)
• pci_epc_map_addr(9)
• pci_epc_mem_map(9)
• pci_epc_mem_unmap(9)
• pci_epc_clear_bar(9)
• pci_epc_set_bar(9)
• pci_epc_bar_size_to_rebar_cap(9)
• pci_epc_write_header(9)
• pci_epc_add_epf(9)
• pci_epc_remove_epf(9)
• pci_epc_linkup(9)
• pci_epc_linkdown(9)
• pci_epc_init_notify(9)
• pci_epc_notify_pending_init(9)
• pci_epc_deinit_notify(9)
• pci_epc_bus_master_enable_notify(9)
• pci_epc_destroy(9)
• __pci_epc_create(9)
• __devm_pci_epc_create(9)

okay that's the whole page, bestie 💖 cute little sign-off: source/version is ./drivers/pci/endpoint, date is October 2026, and the manual title is pci_epc_get_first_free_bar(9) 🎀✨