ENUM ES58X_ERR(9)

✨ enum es58x_err(9) ✨

okay so real quick bestie — this is a page from the Kernel API Manual, and it's literally all about enum es58x_err, aka CAN error detection 💅. Buckle up, it's giving "small enum, big feelings".

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🎀 NAME 🎀

enum es58x_err — CAN error detection. no cap, that's the whole job.

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✨ SYNOPSIS ✨

enum es58x_err {
    ES58X_ERR_OK ,
    ES58X_ERR_PROT_STUFF ,
    ES58X_ERR_PROT_FORM ,
    ES58X_ERR_ACK ,
    ES58X_ERR_PROT_BIT ,
    ES58X_ERR_PROT_CRC ,
    ES58X_ERR_PROT_BIT1 ,
    ES58X_ERR_PROT_BIT0 ,
    ES58X_ERR_PROT_OVERLOAD ,
    ES58X_ERR_PROT_UNSPEC

};

look at her. every member in its little slot. iconic. 👑

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🌸 Constants 🌸

okay now the main character section — every single constant, explained, no skips:

• ES58X_ERR_OK — literally no errors. the good timeline 🫶
• ES58X_ERR_PROT_STUFF — bit stuffing error: more than 5 consecutive equal bits. yeah, more than five in a row and the vibe check fails 😭
• ES58X_ERR_PROT_FORM — frame format error. the frame simply isn't framing.
• ES58X_ERR_ACK — received no ACK on transmission. you sent it and got left on read 💀
• ES58X_ERR_PROT_BIT — single bit error. one (1) bit off. one!
• ES58X_ERR_PROT_CRC — incorrect 15, 17 or 21 bits CRC. those are the numbers, bestie, all three of them.
• ES58X_ERR_PROT_BIT1 — unable to send recessive bit: tried to send recessive bit 1 but monitored dominant bit 0. she said recessive, the bus said dominant. embarrassing fr fr 🙈
• ES58X_ERR_PROT_BIT0 — unable to send dominant bit: tried to send dominant bit 0 but monitored recessive bit 1. the exact mirror of the above and equally not slaying.
• ES58X_ERR_PROT_OVERLOAD — bus overload. the bus is going through it rn 🌧️
• ES58X_ERR_PROT_UNSPEC — unspecified. we don't know and honestly we're not asking.

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🦋 Description 🦋

please please please go read ISO 11898-1:2015, section 10.11 "Error detection" and section 10.13 "Overload signaling" for additional details 🧚 like yes it's the actual spec, yes it's long, yes it ate. iykyk.

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🫶 SEE ALSO 🫶

okay this list is LONG and we're getting through all of it, hold my iced coffee:

kernel file ./drivers/net/can/usb/etas_es58x/es58x_core.h enum es58x_driver_info(9), enum es58x_physical_layer(9), enum es58x_sync_edge(9), enum es58x_flag(9), enum es58x_event(9), struct es58x_priv(9), struct es58x_parameters(9), struct es58x_operators(9), struct es58x_sw_version(9), struct es58x_hw_revision(9), struct es58x_device(9), es58x_sizeof_es58x_device(9), es58x_check_msg_len(9), es58x_check_msg_max_len(9), es58x_msg_num_element(9), es58x_priv(9), ES58X_SIZEOF_URB_CMD(9), es58x_get_urb_cmd_len(9), es58x_get_netdev(9), es58x_get_raw_can_id(9), es58x_get_flags(9)

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that's the whole page, bestie. ten constants, one enum, zero skips. go detect some errors responsibly 💖

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and that's a wrap! this little beauty lives in ./drivers/net/can/usb/etas_es58x and the version tag is dated October 2026 — stay hydrated and see you in the next man page, mwah 💅🎀✨