pr_info(9)

🌸 pr_info(9) — the Kernel API Manual bestie edition 🌸

okay so you're reading the Kernel API Manual page for pr_info, and honestly? iconic choice. This is the one that prints your little info-level messages into the kernel log, and it's lowkey the most-used macro in the whole printk family. Let's get into it 💅

✨ NAME ✨

pr_info — print an info-level message 🎀

✨ SYNOPSIS ✨

pr_info (fmt , ... );

✨ ARGUMENTS ✨

• fmt — the format string, bestie. this is the template your message gets built from ✨
• ... — the arguments for the format string, i.e. all the stuff that gets slotted into fmt 🫶

✨ DESCRIPTION ✨

So here's the tea 🍓: this macro expands to a printk with KERN_INFO loglevel. That's it, that's the whole vibe. It uses pr_fmt to generate the format string, so your output gets that little prefix treatment. no cap, it's that simple and that's why we love her 💖

✨ SEE ALSO ✨

Kernel file ./include/linux/printk.h plus the whole printk friend group, go say hi 👑:

• printk_cpu_sync_get_irqsave(9)
• printk_cpu_sync_put_irqrestore(9)
• pr_fmt(9)
• printk(9)
• pr_emerg(9)
• pr_alert(9)
• pr_crit(9)
• pr_err(9)
• pr_warn(9)
• pr_notice(9)
• pr_cont(9)
• pr_devel(9)
• pr_debug(9)
• print_hex_dump_bytes(9)

and that's the page, bestie 🌈 fr fr go log something nice. this one came out of ./include/linux and it's dated October 2026 — mwah, slay, periodt 💜🦋