ENUM COMEDI_SUBDEVICE_TYPE(9)

✨ enum comedi_subdevice_type(9) ✨

okay so bestie, imagine you're reading the Kernel API Manual and you stumble onto this one — it's literally just the master list of what kind of thing a COMEDI subdevice can be 🎀. That's it, that's the whole vibe. Every subdevice in the COMEDI world picks one of these little labels for itself, and this enum is the label maker. slay 💅

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🌸 NAME 🌸

enum comedi_subdevice_type — COMEDI subdevice types. yep, that's the whole name, no cap ✨

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🦋 SYNOPSIS 🦋

enum comedi_subdevice_type {
    COMEDI_SUBD_UNUSED ,
    COMEDI_SUBD_AI ,
    COMEDI_SUBD_AO ,
    COMEDI_SUBD_DI ,
    COMEDI_SUBD_DO ,
    COMEDI_SUBD_DIO ,
    COMEDI_SUBD_COUNTER ,
    COMEDI_SUBD_TIMER ,
    COMEDI_SUBD_MEMORY ,
    COMEDI_SUBD_CALIB ,
    COMEDI_SUBD_PROC ,
    COMEDI_SUBD_SERIAL ,
    COMEDI_SUBD_PWM

};

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👑 DESCRIPTION 👑

so the description here is literally split into constants, and honestly? each one is a whole little personality 💖. here's the full roster, no skips, no shortcuts:

🧚 Constants

• COMEDI_SUBD_UNUSED — unused subdevice. it's giving "empty seat at the lunch table" 🫶
• COMEDI_SUBD_AI — analog input.
• COMEDI_SUBD_AO — analog output.
• COMEDI_SUBD_DI — digital input.
• COMEDI_SUBD_DO — digital output.
• COMEDI_SUBD_DIO — digital input/output. both directions, main character energy ✨
• COMEDI_SUBD_COUNTER — counter.
• COMEDI_SUBD_TIMER — timer. ⏰
• COMEDI_SUBD_MEMORY — memory, EEPROM, DPRAM.
• COMEDI_SUBD_CALIB — calibration DACs.
• COMEDI_SUBD_PROC — processor, DSP.
• COMEDI_SUBD_SERIAL — serial I/O.
• COMEDI_SUBD_PWM — Pulse-Width Modulation output. iconic 🌈

that's all thirteen, counted them twice, we don't leave anyone out here 💜

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🔥 SEE ALSO 🔥

kernel file ./include/uapi/linux/comedi.h, and honestly the whole friend group shows up:

• enum comedi_io_direction(9)
• enum configuration_ids(9)
• enum comedi_digital_trig_op(9)
• enum comedi_support_level(9)
• enum comedi_counter_status_flags(9)
• struct comedi_insn(9)
• struct comedi_insnlist(9)
• struct comedi_cmd(9)
• struct comedi_chaninfo(9)
• struct comedi_rangeinfo(9)
• struct comedi_krange(9)
• struct comedi_subdinfo(9)
• struct comedi_devinfo(9)
• struct comedi_devconfig(9)
• struct comedi_bufconfig(9)
• struct comedi_bufinfo(9)

like, the entire extended cast 😭 go read them all, iykyk 💅

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💖 and that's the page!! 💖 this little love letter lives in ./include/uapi/linux and the manual's dated October 2026 — bye bestie, go label some subdevices 🦋✨🎀