set_gamma(9)

🌸 NAME 🌸

okay so bestie, welcome to set_gamma(9) — the kernel API manual page for set_gamma - set gamma curves ✨ this is the whole vibe.

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💅 SYNOPSIS 💅

int set_gamma (struct fbtft_par *par , u32 *curves );

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🎀 ARGUMENTS 🎀

• par — FBTFT parameter object 🫶
• curves — gamma curves, the main character of this whole page 💖

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🦋 DESCRIPTION 🦋

Before the gamma curves are applied, they get preprocessed with a <mint>bitmask</mint> to ensure syntactically correct input for the display controller. no cap, that's literally the preprocessing step.

Vibe check: this implies that the curves input parameter might be changed by this function, and illegal gamma values are auto-corrected — they are not reported as errors. periodt. 💅

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🌈 RETURN 🌈

0 on success, < 0 if error occurred. fr fr, that's the whole return situation.

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/staging/fbtft/fb_st7789v.c enum st7789v_command(9), init_display(9), set_var(9), blank(9)

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xoxo, your kernel bestie 💖 — source/version: ./drivers/staging/fbtft · date: October 2026 🎀