s1d13xxxfb_blank(9)

🎀 NAME 🎀

okay so this is the Kernel API Manual page for s1d13xxxfb_blank — and bestie, it blanks the display. that's the whole vibe. 💅

✨ SYNOPSIS ✨

int s1d13xxxfb_blank (int blank_mode , struct fb_info *info );

🦋 ARGUMENTS 🦋

• blank_mode — the blank mode we want. literally that. 🎯
• info — frame buffer structure that represents a single frame buffer. iconic struct behavior, no cap. 🫶

💖 DESCRIPTION 💖

so here's the tea: blank the screen if blank_mode != 0, else unblank. return 0 if blanking succeeded, != 0 if un-/blanking failed due to e.g. a video mode which doesn't support it. 😭

it implements VESA suspend and powerdown modes on hardware that supports disabling hsync/vsync, and the mode lineup is giving:

• blank_mode == 2: suspend vsync
• blank_mode == 3: suspend hsync
• blank_mode == 4: powerdown

and yeah, it also says: returns negative errno on error, or zero on success. ✨

lowkey important: if a video mode doesn't support the un-/blanking, that failure is real — don't expect success energy where there isn't any. 💀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/video/fbdev/s1d13xxxfb.c
• s1d13xxxfb_set_par(9)
• s1d13xxxfb_setcolreg(9)
• s1d13xxxfb_pan_display(9)
• bltbit_wait_bitclear(9)
• s1d13xxxfb_bitblt_solidfill(9)
• s1d13xxxfb_fetch_hw_state(9)

this page came from the ./drivers/video/fbdev source/version, dated October 2026 — mwah, enjoy the kernel lore, bestie 💋👑🌸