matrix_keypa...e_properties(9)

🎀 matrix_keypa...e_properties(9) 🎀

okay bestie, welcome to the Kernel API Manual — yes that's the manual name, it's giving "official docs but make it cute" ✨ this page is literally all about matrix_keypad_parse_properties, no cap 💅

🌸 NAME 🌸

matrix_keypad_parse_properties — read the properties of a matrix keypad, that's the whole vibe 🦋

✨ SYNOPSIS ✨

int matrix_keypad_parse_properties (struct device *dev , unsigned int
*rows , unsigned int *cols );

like. that's the signature. copy it exactly, don't @ me 🔥

💖 ARGUMENTS 💖

• dev — the device that's holding all these properties, aka the main character 👑
• rows — this one returns the number of matrix rows, so yeah, it's an output, treat it right 🫶
• cols — this one returns the number of matrix columns. and bestie, here's the deal: it returns 0 if OK, and <0 on error. that's the whole return contract, don't forget it 😭

fr fr, both rows and cols are pointers that get filled in — the function hands the numbers back to you through them 💜

🦋 SEE ALSO 🦋

• Kernel file ./drivers/input/matrix-keymap.c — go read it, it's iconic 💅
• matrix_keypad_build_keymap(9) — the sibling page, iykyk 🌈

so that's the whole page, short and slay ⭐ this one's from ./drivers/input, dated October 2026 — periodt, go build a keypad 💖🎀