ps2_sliced_command(9)

✨ NAME ✨

ps2_sliced_command — bestie, this one sends an extended PS/2 command to a mouse 🐭💅 and honestly it's giving "we do a little trolling with extra steps" (affectionate).

It's a <purple>Kernel API Manual</purple> moment, so grab a snack 🍓 and let's get into it.

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🦋 SYNOPSIS 🦋

int ps2_sliced_command (struct ps2dev *ps2dev , u8 command );

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🎀 ARGUMENTS 🎀

• ps2dev — the PS/2 device that should execute the command 🫶 like, the little guy who's gonna do the thing
• command — the command byte ✨ one whole byte, that's the whole errand

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💖 DESCRIPTION 💖

okay so. The command gets sent using <hotpink>"sliced" syntax</hotpink> — and no, that's not me being weird, that's the actual name 📚. It's the fancy-pants syntax that advanced devices understand, the ones like Logitech or Synaptics touchpads 👑 (iykyk).

And the way it gets encoded is literally this, no cap:

0xE6 0xE8 rr 0xE8 ss 0xE8 tt 0xE8 uu

where (rr*64)+(ss*16)+(tt*4)+uu is the command 🧮💀 — yes, it's doing math inside a mouse command, main character energy fr fr. The four nibbles get sliced up and shipped out one by one with 0xE8 as the little bodyguard in front of each. Slay 💅

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/input/serio/libps2.c
• ps2_sendbyte(9)
• ps2_begin_command(9)
• ps2_end_command(9)
• ps2_drain(9)
• ps2_is_keyboard_id(9)
• __ps2_command(9)
• ps2_command(9)
• ps2_init(9)
• ps2_interrupt(9)

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that's the whole page, bestie 🎀🦋 no crumbs left, every flag and byte accounted for ✨

source: ./drivers/input/serio · version/date: October 2026 · manual: ps2_sliced_command(9) — ok bye, go read the SEE ALSO, I believe in you 💜🫶