STRUCT SMB_CHIP(9)

💖 STRUCT SMB_CHIP 💖

okay so bestie, welcome to the kernel API manual page for struct smb_chip — yep, that's the smb chip structure itself, and honestly she's kind of iconic. this is from the struct smb_chip(9) page, and we're gonna go through her field by field because every single member matters, no cap. 🫶

✨ NAME ✨

struct smb_chip — the smb chip structure, aka the main character of this whole file 💅

🌸 SYNOPSIS 🌸

like, here's literally what she looks like, bestie — copy it exactly, don't @ me:

struct smb_chip {
    struct device *dev;
    const char *name;
    unsigned int base;
    struct regmap *regmap;
    struct power_supply_battery_info *batt_info;
    struct delayed_work status_change_work;
    int cable_irq;
    bool wakeup_enabled;
    struct iio_channel *usb_in_i_chan;
    struct iio_channel *usb_in_v_chan;
    struct power_supply *chg_psy;
 };

🦋 Members 🦋

okay so let's go through the squad one by one, because each of these is doing her own little job and we stan 😌

• dev — the device reference for power_supply. she's the link back to the device, periodt 🎀
• name — the platform device name. literally just her name tag at the party ✨
• base — the base address for smb registers. this is where the registers live, fr fr 📍
• regmap — the register map. yep, the actual map to the registers, lowkey essential 🗺️
• batt_info — battery data from DT (that's device tree, iykyk) 🔋
• status_change_work — the worker that handles plug/unplug events. she's the one clocking in every time you plug in your charger, highkey important 💀
• cable_irq — the USB plugin IRQ. the interrupt that fires when the cable gets involved 🙈
• wakeup_enabled — tells you if the cable_irq will cause a wakeup. bool energy — yes or no, that's it 🌈
• usb_in_i_chan — the USB_IN current measurement channel. she measures the current, no big deal ⚡
• usb_in_v_chan — the USB_IN voltage measurement channel. and she measures the voltage, matching-set energy 🔥
• chg_psy — the charger power supply instance. the charger's actual presence in the power supply world 👑

👀 SEE ALSO 👀

• Kernel file ./drivers/power/supply/qcom_smbx.c — go read the source, bestie, the lore is all in there 🧚

aaaand that's the whole page! 💜 this gorgeous thing comes from the ./drivers/power/supply corner of the kernel, dated October 2026, and yes she's still struct smb_chip(9) — slay, go forth and read your registers responsibly ⭐🎀