rtc_update_irq(9)

💖 rtc_update_irq(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes, we're reading kernel docs together, this is our bonding time, no cap ✨

🌸 NAME 🌸

rtc_update_irq — the function that gets called when a RTC interrupt happens. literally its whole job. icon behaviour 💅

🎀 SYNOPSIS 🎀

void rtc_update_irq (struct rtc_device *rtc , unsigned long num ,
       unsigned long events );

like, that's the whole vibe. three args, void return, done 🫶

🦋 ARGUMENTS 🦋

• rtc — the rtc device, aka the actual real-time-clock bestie in question 👑
• num — how many irqs are being reported, and ngl it's usually one (usually!! keep that in mind, sometimes it's not 🙈)
• events — a mask of RTC_IRQF with one or more of RTC_PF, RTC_AF, RTC_UF. like the little event combo platter 🍓

✨ CONTEXT ✨

any — literally any context, it does not care, it's flexible like that 💜

🌈 SEE ALSO 🌈

kernel file ./drivers/rtc/interface.c (go look, it's right there), plus the whole friend group:

• rtc_read_next_alarm(9)
• rtc_handle_legacy_irq(9)
• rtc_aie_update_irq(9)
• rtc_uie_update_irq(9)
• rtc_pie_update_irq(9)
• rtc_irq_set_state(9)
• rtc_irq_set_freq(9)
• rtc_timer_enqueue(9)
• rtc_timer_remove(9)
• rtc_timer_do_work(9)
• rtc_read_offset(9)
• rtc_set_offset(9)

and that's the page, bestie!! 🧚 this one comes from ./drivers/rtc and it's dated October 2026 — so mark your calendar, it's giving future icon energy ⭐ rtc_update_irq(9) out 💖