lwmi_psy_ext_get_prop(9)

💖 lwmi_psy_ext_get_prop — the kernel API manual, bestie edition 💖

Okay so picture this: it's a (9) section page, the man page name is literally lwmi_psy_ext_get_prop, and it lives in the Kernel API Manual. That's the vibe. Let's get into it 🫶

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✨ NAME ✨

lwmi_psy_ext_get_prop — get a power_supply_ext property. That's it, that's the whole errand. 💅

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🌸 SYNOPSIS 🌸

int lwmi_psy_ext_get_prop (struct power_supply *ps , const struct
       power_supply_ext *ext , void *ext_data , enum power_supply_property prop
       , union power_supply_propval *val );

Like yes, it's five arguments, don't panic. We go through them one by one down below 🔥

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🎀 ARGUMENTS 🎀

• ps — the battery that was extended. She got the upgrade, we're just visiting her 💖
• ext — the extension itself. The actual extra-ness 💅
• ext_data — a pointer to the lwmi_om_priv drvdata. Yes, exactly that one, no cap 🫶
• prop — the property we want to read, an enum power_supply_property bestie 🌸
• val — where the value gets handed back to you, a union power_supply_propval. It's giving output parameter 😭

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🦋 DESCRIPTION 🦋

Reads the given value from the power_supply_ext property. That's the whole plot. Simple, iconic, does one thing ⭐

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👑 RETURN 👑

0 on success, or an error. So like, check your return value, bestie, fr fr 🙈

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🌈 SEE ALSO 🌈

The kernel file in question:

./drivers/platform/x86/lenovo/wmi-other.c

And the whole friend group, everyone's invited to the group chat:

• lwmi_om_fan_get_set(9)
• lwmi_om_hwmon_is_visible(9)
• lwmi_om_hwmon_read(9)
• lwmi_om_hwmon_write(9)
• lwmi_om_hwmon_add(9)
• lwmi_om_hwmon_remove(9)
• lwmi_om_fan_info_init(9)
• lwmi_om_fan_info_collect_cd00(9)
• lwmi_om_fan_info_collect_cd_fan(9)
• lwmi_psy_ext_set_prop(9)
• lwmi_psy_prop_is_supported(9)
• lwmi_psy_prop_is_writeable(9)
• lwmi_add_battery(9)
• lwmi_remove_battery(9)
• lwmi_acpi_match(9)
• lwmi_om_psy_ext_init(9)
• lwmi_om_psy_remove(9)
• tunable_attr_01_id(9)
• int_type_show(9)
• attr_capdata01_show(9)
• attr_current_value_store(9)
• attr_current_value_show(9)
• lwmi_attr_01_is_supported(9)
• lwmi_om_fw_attr_add(9)
• lwmi_om_fw_attr_remove(9)
• lwmi_om_master_bind(9)
• lwmi_om_master_unbind(9)

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So that's the tea 🍓 This page comes to you from ./drivers/platform/x86/lenovo, dated October 2026 — mwah, love that for us. Go read your properties responsibly, ily, bye 💜🧚