scmi_raw_message_send(9)

💅 scmi_raw_message_send(9) — like, the Kernel API Manual is literally right here

okay so bestie, listen up 💖 welcome to the glow-up of scmi_raw_message_send(9), straight out of the Kernel API Manual. This little icon is an helper — and yes, "an helper" is exactly how the original says it, we stan a quirky queen — that builds and sends an SCMI command using the SCMI bare message buffer you hand it. that's the whole vibe. no cap.

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✨ SYNOPSIS ✨

int scmi_raw_message_send (struct scmi_raw_mode_info *raw , void *buf ,
       size_t len , u8 chan_id , bool async , bool poll );

like, that's the whole signature, int and all, and it returns an int, periodt. 🫶

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🎀 ARGUMENTS 🎀

these are the besties you're passing in, one by one:

• raw — a reference to the Raw instance. that's your entry point, the main character of this whole operation 👑
• buf — a buffer holding the whole SCMI message you wanna send, and yes babes, that includes the header. it's in little-endian binary format, so don't get cute with it 🙈
• len — the length of the message sitting in buf. hope it's accurate, that's all we're saying 💀
• chan_id — the channel ID to use. pick your lane 🦋
• async — a flag stating whether an asynchronous command is required. a flag, so it's true/false energy ✨
• poll — a flag stating whether a polling transmission is required. also a flag, also a mood 🌸

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🔥 RETURN 🔥

• 0 on Success — that's it. zero. the prettiest number. slay 💅

lowkey note: the original just says 0 on Success and we're not gonna invent anything else for you, that's not our brand bestie 💖

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🌈 SEE ALSO 🌈

okay so the rabbit hole starts in the kernel file ./drivers/firmware/arm_scmi/raw_mode.c — go read it, it ate. then there's the whole squad, all listed, all linked, all iconic:

• Theory of operation(9)
• struct scmi_raw_queue(9)
• struct scmi_raw_mode_info(9)
• struct scmi_xfer_raw_waiter(9)
• struct scmi_raw_buffer(9)
• struct scmi_dbg_raw_data(9)
• scmi_xfer_raw_worker(9)
• scmi_xfer_raw_get_init(9)
• scmi_do_xfer_raw_start(9)
• scmi_raw_message_receive(9)
• scmi_raw_mode_init(9)
• scmi_raw_mode_cleanup(9)
• scmi_raw_message_report(9)
• scmi_raw_error_report(9)

like, that's the whole friend group, no one left out 🫶🎀

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and that's a wrap, bestie!! this page lives under ./drivers/firmware/arm_scmi, dated October 2026, and it's filed as scmi_raw_message_send(9) in case you need to find it again. mwah 💜🧚‍♀️