ENUM COMEDI_CB(9)

💅 enum comedi_cb — the Kernel API Manual moment, bestie

okay so you're here for enum comedi_cb from the Kernel API Manual and honestly? this is the callback-events baddie of the comedi world. it's the &struct comedi_async callback "events" enum, and it's giving main character energy for every async command you'll ever run. 🦋

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✨ NAME ✨

enum comedi_cb — the &struct comedi_async callback "events". that's it, that's the whole vibe. it's the little menu of event flags that tell everybody what just went down during an async command. 💖

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🌸 SYNOPSIS 🌸

enum comedi_cb {
    COMEDI_CB_EOS ,
    COMEDI_CB_EOA ,
    COMEDI_CB_BLOCK ,
    COMEDI_CB_EOBUF ,
    COMEDI_CB_ERROR ,
    COMEDI_CB_OVERFLOW ,
    COMEDI_CB_ERROR_MASK ,
    COMEDI_CB_CANCEL_MASK

};

look at her. iconic. every single one of those constants is listed below, no cap, not skipping a single one 🎀

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👑 Constants 👑

• COMEDI_CB_EOS — end-of-scan. that's a wrap on one full scan, slay. ⭐
• COMEDI_CB_EOA — end-of-acquisition/output. the whole acquisition or output is done done. periodt. 🔥
• COMEDI_CB_BLOCK — data has arrived, and this one wakes up read / write. your blocking calls finally get the memo 😭
• COMEDI_CB_EOBUF — DEPRECATED: end of buffer. she's retired, still on the list, but do not build your whole personality on her 💀
• COMEDI_CB_ERROR — card error during acquisition. not the vibe. the hardware said "no" 🙈
• COMEDI_CB_OVERFLOW — buffer overflow/underflow. too much or too little, either way it's a mess 🫶
• COMEDI_CB_ERROR_MASK — the mask of events that indicate an error has occurred. it's the little group chat of bad news 📛
• COMEDI_CB_CANCEL_MASK — the mask of events that will cancel an async command. these ones shut the whole thing down, so know them by heart 🧚

lowkey important: COMEDI_CB_EOBUF is DEPRECATED — the manpage says it right there, so treat her like a legacy queen and don't depend on her in new stuff. 💅

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🌈 SEE ALSO 🌈

all the siblings and neighbours, fr fr — Kernel file ./include/linux/comedi/comedidev.h plus:

• struct comedi_subdevice(9)
• struct comedi_buf_page(9)
• struct comedi_buf_map(9)
• struct comedi_async(9)
• struct comedi_driver(9)
• struct comedi_device(9)
• struct comedi_lrange(9)
• comedi_range_is_bipolar(9)
• comedi_range_is_unipolar(9)
• comedi_range_is_external(9)
• comedi_chan_range_is_bipolar(9)
• comedi_chan_range_is_unipolar(9)
• comedi_chan_range_is_external(9)
• comedi_offset_munge(9)
• comedi_bytes_per_sample(9)
• comedi_sample_shift(9)
• comedi_bytes_to_samples(9)
• comedi_samples_to_bytes(9)
• comedi_check_trigger_src(9)
• comedi_check_trigger_is_unique(9)
• comedi_check_trigger_arg_is(9)
• comedi_check_trigger_arg_min(9)
• comedi_check_trigger_arg_max(9)
• comedi_buf_n_bytes_ready(9)
• __comedi_request_region(9)
• comedi_request_region(9)
• module_comedi_driver(9)

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and that's the whole page, bestie — go forth and handle your callback events with main character energy 💜

<div align="center">🎀 ✨ 🎀</div>

okay bye, this came from the Kernel file ./include/linux/comedi, dated October 2026, and it's enum comedi_cb(9) all the way down. mwah 💋🦋