SD-HWDB(3)

🌸 NAME 🌸

okay so welcome to the sd-hwdb(3) manual page — that's the manual name, folded in near the top like a lil name tag 🎀 — and it's all about read-only access to the hardware description database. You can look, bestie, but you cannot touch. 👀✨

✨ SYNOPSIS ✨

#include <systemd/sd-hwdb.h>

pkg-config --cflags --libs libsystemd

🦋 DESCRIPTION 🦋

sd-hwdb.h is part of libsystemd(3) and allows read-only access the systemd database of hardware properties. Yes, that's the exact read-only vibe — no editing, no writing, just looking respectfully. 💖

For more info about the database itself, go check hwdb(7) and systemd-hwdb(8) — they're the lore keepers of the hardware database. 📚

And for the functions available, see sd_hwdb_new(3) and sd_hwdb_get(3). Those are the actual function besties you'll be calling. 🫶

💅 NOTES 💅

Functions described here are available as a shared library, which can be compiled against and linked to with the libsystemd pkg-config(1) file. Slay, linking is handled. 🔗

The code described here uses getenv(3), which is declared to be not multi-thread-safe. This means that the code calling the functions described here must not call setenv(3) from a parallel thread. That's not a suggestion, bestie — that's the rule. 💀

It is recommended to only do calls to setenv() from an early phase of the program when no other threads have been started. Do your setenv() business first, before the thread party starts. 🎀

🌈 SEE ALSO 🌈

• systemd(1)
• systemd-udevd.service(8)

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mwah 💖 that's the whole page: systemd 261.3, SD-HWDB(3), and the footer date slot is blank on this one — but the source/version is right there, periodt. 👑✨