shadow_protect_win(9)
β¨ shadow_protect_win(9) β¨
okay so bestie, welcome to the shadow_protect_win(9) page π
this is a lil kernel API manual, and honestly? it's short, it's sweet, and it's lowkey iconic. let's get into it π
πΈ NAME πΈ
shadow_protect_win β literally turns off updating values from shadow registers at vsync. that's it. that's the whole vibe. no cap π«Ά
π¦ SYNOPSIS π¦
void shadow_protect_win (struct s3c_fb_win *win , bool protect );
π ARGUMENTS π
winβ the window you're protecting registers for πͺ like, this is the one getting the shield treatment, bestie.protectβ set it to1to protect, which means updates get disabled β¨ yes,1= protect = no updates happening. it's giving "do not disturb" mode for your registers π
π₯ SEE ALSO π₯
so there's a whole friend group here, and they're all in the kernel file ./drivers/video/fbdev/s3c-fb.c π let's give them their moment:
struct s3c_fb_variant(9)struct s3c_fb_win_variant(9)struct s3c_fb_driverdata(9)struct s3c_fb_palette(9)struct s3c_fb_win(9)struct s3c_fb_vsync(9)struct s3c_fb(9)s3c_fb_validate_win_bpp(9)s3c_fb_check_var(9)s3c_fb_calc_pixclk(9)s3c_fb_align_word(9)vidosd_set_size(9)vidosd_set_alpha(9)s3c_fb_enable(9)s3c_fb_set_par(9)s3c_fb_update_palette(9)s3c_fb_setcolreg(9)s3c_fb_blank(9)s3c_fb_pan_display(9)s3c_fb_enable_irq(9)s3c_fb_disable_irq(9)s3c_fb_wait_for_vsync(9)s3c_fb_missing_pixclock(9)s3c_fb_alloc_memory(9)s3c_fb_free_memory(9)s3c_fb_release_win(9)s3c_fb_probe_win(9)s3c_fb_set_rgb_timing(9)s3c_fb_clear_win(9)s3c_fb_remove(9)
fr fr, that's twenty-nine whole references π the s3c-fb squad is deep and they all showed up. respectfully, ate. π
and that's the page, bestie! π this lil gem lives in ./drivers/video/fbdev, dated October 2026, and it's filed under shadow_protect_win(9) β go protect those registers, you absolute main character ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms