es581_4_sizeof_rx_tx_msg(9)

💅 NAME 💅

Okay bestie, welcome to es581_4_sizeof_rx_tx_msg(9) from the Kernel API Manual — the little page that tells you how to calculate the actual length of the structure of a rx or tx message. Slay. ✨

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🎀 SYNOPSIS 🎀

es581_4_sizeof_rx_tx_msg (msg );

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🦋 ARGUMENTS 🦋

• msg — the message, and it is variable length. It absolutely must have a dlc field, no cap. 🫶

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🌸 DESCRIPTION 🌸

So here’s the vibe: even if RTR frames actually have no payload, the ES58X devices still expect it. Iconic of them, honestly. 😭

And this thing must be a macro so it can accept several types as an input — specifically struct es581_4_tx_can_msg and struct es581_4_rx_can_msg. It’s giving flexible, it’s giving macro realness. 💅

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⭐ RETURN ⭐

It returns the length of the message. That’s the whole assignment, bestie. 🎀

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👑 SEE ALSO 👑

Kernel file ./drivers/net/can/usb/etas_es58x/es581_4.c — go read it, iykyk. 💖

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Mwah 💋 this page comes from ./drivers/net/can/usb/etas_es58x and is dated October 2026. Bye bestie, go calculate those message lengths! 🌈🦋