fwnode_iomap(9)

💅 fwnode_iomap(9) — Kernel API Manual, but make it cute

okay so bestie, this is the fwnode_iomap(9) page from the Kernel API Manual, and it is short, sweet, and very “maps the memory mapped IO for a given fwnode.” no cap. ✨

🦋 NAME 🦋

fwnode_iomap — maps the memory mapped IO for a given fwnode. literally that. 💖

🎀 SYNOPSIS 🎀

void __iomem * fwnode_iomap (struct fwnode_handle *fwnode , int index );

🌸 ARGUMENTS 🌸

• fwnode — pointer to the firmware node. that’s the main-character struct pointer, bestie 🫶
• index — index of the IO range. like, which range we’re talking about ✨

🔥 RETURN 🔥

a pointer to the mapped memory. that’s the whole return section, and it ate. 💅

👑 SEE ALSO 👑

Kernel file ./drivers/base/property.c

the SEE ALSO squad, in the exact order the page gives them:

• device_property_present(9)
• fwnode_property_present(9)
• device_property_read_bool(9)
• fwnode_property_read_bool(9)
• device_property_read_u8_array(9)
• device_property_read_u16_array(9)
• device_property_read_u32_array(9)
• device_property_read_u64_array(9)
• device_property_read_string_array(9)
• device_property_read_string(9)
• device_property_match_string(9)
• fwnode_property_read_u8_array(9)
• fwnode_property_read_u16_array(9)
• fwnode_property_read_u32_array(9)
• fwnode_property_read_u64_array(9)
• fwnode_property_read_string_array(9)
• fwnode_property_read_string(9)
• fwnode_property_match_string(9)
• fwnode_property_match_property_string(9)
• fwnode_property_get_reference_args(9)
• fwnode_find_reference(9)
• fwnode_get_name(9)
• fwnode_get_name_prefix(9)
• fwnode_name_eq(9)
• fwnode_get_parent(9)
• fwnode_get_next_parent(9)
• fwnode_count_parents(9)
• fwnode_get_nth_parent(9)
• fwnode_get_next_child_node(9)
• fwnode_get_next_available_child_node(9)
• device_get_next_child_node(9)
• fwnode_get_named_child_node(9)
• device_get_named_child_node(9)
• fwnode_handle_get(9)
• fwnode_device_is_available(9)
• fwnode_get_child_node_count(9)
• fwnode_get_named_child_node_count(9)
• fwnode_get_phy_mode(9)
• device_get_phy_mode(9)
• fwnode_irq_get(9)
• fwnode_irq_get_byname(9)
• fwnode_graph_get_next_endpoint(9)
• fwnode_graph_get_port_parent(9)
• fwnode_graph_get_remote_port_parent(9)
• fwnode_graph_get_remote_port(9)
• fwnode_graph_get_remote_endpoint(9)
• fwnode_graph_get_endpoint_by_id(9)
• fwnode_graph_get_endpoint_count(9)
• fwnode_graph_parse_endpoint(9)
• fwnode_connection_find_match(9)
• fwnode_connection_find_matches(9)

that’s the whole page, bestie 💖 — source path is ./drivers/base, date is October 2026, and it’s the fwnode_iomap(9) manual page. mwah 🫶🎀