drm_fb_helper_check_var(9)

📦 version 7.3.1, in nixpkgs unstable

💅 drm_fb_helper_check_var — bestie edition 💅

okay so real talk, this is a page from the Kernel API Manual (yes, the kernel, we're doing kernel shit today, don't be scared 💖) and it's all about drm_fb_helper_check_var, which is literally just the implementation for &fb_ops.fb_check_var. that's it. that's the whole vibe. it's giving "one job, does it well" energy. ✨

🌸 NAME 🌸

drm_fb_helper_check_var — the implementation for &fb_ops.fb_check_var, no cap 🎀

🦋 SYNOPSIS 🦋

like, here's the signature, copied exactly, don't @ me:

int drm_fb_helper_check_var (struct fb_var_screeninfo *var , struct
fb_info *info );

she takes two arguments and returns an int. iconic behavior honestly 👑

💅 ARGUMENTS 💅

so here's the tea on the parameters, both of them, we're not skipping a single one:

  • var — the screeninfo you're checking. yes, checking, that's the whole point bestie, she's doing a vibe check on this struct 🌈
  • info — the fbdev that got registered by the helper. that's her home. that's where she lives 🏠

🫶 SEE ALSO 🫶

okay this part is LONG and I need you to stay with me, because every single one of these is linked and I'm not skipping any of them, periodt:

like??? the whole friend group showed up. iykyk 😭 a full squad of fb helpers, all connected. go read them, they're literally all right there 💜

fr fr this is open source kernel documentation, so please remember it cares deeply about its authors, its copyright, and its license — respect the license y'all 🙏

and that's a wrap cutie 🎀 this little page came straight out of ./drivers/gpu/drm, dated October 2026, and it's called drm_fb_helper_check_var(9) — mwah, go check those vars bestie 💖✨🦋

📦 where this page comes from