blank(9)

✨ NAME ✨

blank — blank the display 💅

okay so bestie, this is blank(9), like, section 9 of the Kernel API Manual — the driver-adjacent corner of the manpage universe 🦋. and what does it do? it blanks the display. that's it. that's the whole job. iconic honestly.

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🌸 SYNOPSIS 🌸

int blank (struct fbtft_par *par , bool on );

literally the entire call, no cap 🫶

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🎀 ARGUMENTS 🎀

• par — the FBTFT parameter object 🧚 your whole lil' framebuffer setup lives in here, she's the main character of the call
• on — a bool that says whether we're enabling or disabling the blanking of the display ✨ like, on = blank it, off = un-blank it, vibe check either way

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💖 RETURN 💖

• 0 on success 🌈 (slay)
• < 0 if an error occurred 😭 (not slay, but at least it tells you)

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👑 SEE ALSO 👑

• Kernel file ./drivers/staging/fbtft/fb_st7789v.c — and the enum in it, no big deal 💜
• st7789v_command(9)
• init_display(9)
• set_var(9)
• set_gamma(9)

all of these are fr fr worth a read if you're living in the fbtft world 🌸

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ngl, if you're poking at blank directly, double-check what your par pointer is actually pointing at first. that's just good manners 💅

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k so that's the page!! 💖 sign-off time: this little cutie comes from ./drivers/staging/fbtft, and she's dated October 2026 — yes, the future, she's ahead of her time 🕰️✨ periodt 🎀