scm_legacy_...mmand_buffer(9)

💅 scm_legacy_get_command_buffer — Kernel API Manual ✨

okay so bestie, we're in the <pink>Kernel API Manual</pink> today and this page is literally about scm_legacy_get_command_buffer. Yes that is a mouthful, no I will not be shortening it, it's iconic and we respect it. 💖

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🌸 NAME 🌸

scm_legacy_get_command_buffer — get a pointer to a command buffer. that's it. that's the whole job. she's a one-task queen 👑

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🦋 SYNOPSIS 🦋

void * scm_legacy_get_command_buffer (const struct scm_legacy_command *cmd );

not me copying this exactly because every character matters, periodt 💀

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🎀 ARGUMENTS 🎀

• cmd — a command. that's the entire description she gave us. a command. okay werk, mysterious but valid 💅

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⭐ DESCRIPTION ⭐

so what does she do? she returns a pointer to the command buffer of a command. that's the vibe. you hand her a command, she hands you back a pointer to that command's buffer. no cap, that's the whole plot 🫶

bestie reminder: it says a pointer, it does not promise you anything else about it. don't go inventing guarantees, the page lowkey refuses to give more detail and we respect her boundaries 🙈

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🌈 SEE ALSO 🌈

go look at the kernel file ./drivers/firmware/qcom/qcom_scm-legacy.c — that's where the lore lives 📖

and then the whole friend group:

• struct arm_smccc_args(9)
• struct scm_legacy_command(9)
• struct scm_legacy_response(9)
• scm_legacy_command_to_response(9)
• scm_legacy_get_response_buffer(9)
• scm_legacy_call(9)
• scm_legacy_call_atomic(9)

the way this is literally a whole squad and she's just the one who hands out the buffer 🔥

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🧚 sign-off 🧚

this masterpiece lives in ./drivers/firmware/qcom, dated October 2026, and honestly? she ate. go get your pointer bestie, ily, drink some water 💜🎀✨