riva_wclut(9)

💅 riva_wclut(9) — the Kernel API Manual, bestie edition ✨

okay so this is riva_wclut, a page straight out of the Kernel API Manual, and honestly? she's tiny but she's mighty 🎀

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✨ NAME ✨

riva_wclut — set CLUT entry 🎨

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🌸 SYNOPSIS 🌸

void riva_wclut (RIVA_HW_INST *chip , unsigned char regnum , unsigned char red , unsigned char green , unsigned char blue );

like, that's the whole call. five args, no cap. 🫶

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🦋 ARGUMENTS 🦋

• chip — pointer to a RIVA_HW_INST object 👑 (this is the main character, the whole riva hardware vibe)
• regnum — the register number 📇 (which slot we're messing with)
• red — the red component 🌹
• green — the green component 🍀
• blue — the blue component 🦋

all three color ones are unsigned char, so keep 'em in range, bestie 💜

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⭐ DESCRIPTION ⭐

She sets color register regnum. That's it. That's the whole job. Lowkey iconic for how small she is 💅

CALLED FROM: rivafb_setcolreg — so that's the queen who rings her up whenever a color register needs setting 📞✨

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🎀 SEE ALSO 🎀

Kernel file ./drivers/video/fbdev/riva/fbdev.c — go read the source, iykyk 📖

• rivafb_load_cursor_image(9)
• riva_rclut(9)
• riva_save_state(9)
• riva_load_state(9)
• riva_load_video_mode(9)
• rivafb_do_maximize(9)
• riva_get_cmap_len(9)
• rivafb_pan_display(9)
• rivafb_setcolreg(9)
• rivafb_fillrect(9)
• rivafb_copyarea(9)
• rivafb_imageblit(9)
• rivafb_cursor(9)

that's the whole friend group fr fr 🫶🌈

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this page lives in ./drivers/video/fbdev/riva, dated October 2026 — mwah, go set some CLUT entries, you're gonna slay 💖✨🎀