cm_monitor(9)

💖 NAME 💖

Hiii bestie 💖 welcome to the cm_monitor(9) page — yep, that's section 9 of the Kernel API Manual, and we're about to make battery monitoring make sense. cm_monitor — monitor every battery. Like, every single one. No battery left behind, periodt. 🔋✨

✨ SYNOPSIS ✨

bool cm_monitor (void );

🎀 ARGUMENTS 🎀

• void — no arguments. That's the whole vibe: nothing goes in, bestie. Zero. Nada. 🫶

🔥 DESCRIPTION 🔥

Okay so cm_monitor returns true if there is an event to notify from any of the batteries. That's the main character behavior right there. 👑

Also: it returns true if the status of "emergency_stop" changes. The parentheses said it, so we're saying it too. 💅

🌈 SEE ALSO 🌈

Kernel file ./drivers/power/supply/charger-manager.c is where the lore lives, and the whole squad is:

• is_batt_present(9)
• is_ext_pwr_online(9)
• get_batt_uV(9)
• is_charging(9)
• is_full_charged(9)
• is_polling_required(9)
• try_charger_enable(9)
• check_charging_duration(9)
• cm_get_target_status(9)
• _cm_monitor(9)
• _setup_polling(9)
• cm_monitor_poller(9)
• cm_setup_timer(9)
• charger_extcon_work(9)
• charger_extcon_notifier(9)
• charger_extcon_init(9)
• charger_manager_register_extcon(9)
• charger_manager_prepare_sysfs(9)

Okay that's the page, bestie 🫶 it comes from ./drivers/power/supply, dated October 2026, and if you're searching for it again it's cm_monitor(9) — slay 💅✨