acpi_parse_entries_array(9)

💅 acpi_parse_entries_array(9)

Okay bestie, so this is a page from the Kernel API Manual and it's about acpi_parse_entries_array — literally, for each proc_num find a suitable subtable 🎀

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✨ SYNOPSIS ✨

int __init_or_fwtbl_lib acpi_parse_entries_array (char *id , unsigned
long table_size , union fw_table_header *table_header , unsigned long
max_length , struct acpi_subtable_proc *proc , int proc_num , unsigned
int max_entries );

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🫶 ARGUMENTS 🫶

• id — the table id. It's for debugging purposes, so it's giving "name tag at a party" energy 🏷️
• table_size — the size of the root table.
• table_header — where does the table start? 👀 Like. where does it begin. that's the question.
• max_length — maximum size of the table (ignore if 0) 🙈
• proc — an array of acpi_subtable_proc struct containing entry id and associated handler with it 💖
• proc_num — how big proc is? (yes the manpage really asks this, it's a genuine question, answer it)
• max_entries — how many entries can we process? 🔥

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🌸 DESCRIPTION 🌸

So for each proc_num, find a subtable with proc->id and run proc->handler on it. The assumption here is that there's only single handler for particular entry id — one handler per id, that's the vibe, no cap ✨

Now this next bit is the part where you gotta pay attention, bestie, because it's lowkey the whole plot twist 👑

The table_size is not the size of the complete ACPI table (the length field in the header struct), but only the size of the root table; i.e., the offset from the very first byte of the complete ACPI table, to the first byte of the very first subtable. Read that twice. It's an offset, not a length. It's giving "distance from the door to the first table" not "how big the whole room is" 🌈

On success returns sum of all matching entries for all proc handlers 💀 Otherwise, -ENODEV or -EINVAL is returned 😭

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🦋 SEE ALSO 🦋

• Kernel file ./lib/fw_table.c — go read it, iykyk 📖

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fr fr do not pass the full table length as table_size, that's the one thing this page is yelling at you about 🫶

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and that's the whole page, you ate it up 💜 This icon of a manpage came out of ./lib in October 2026 — mwah, periodt 🧚‍♀️💅