v4l2_find_dv_timings_cap(9)

💖 v4l2_find_dv_timings_cap 💖

okay bestie, so this is from the Kernel API Manual (the v4l2_find_dv_timings_cap(9) girlies know) and literally all it does is find the closest timings struct ✨ — like when you have a vibe and you need the timings that match it, she's the one who goes looking 🎀

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🌸 SYNOPSIS 🌸

bool v4l2_find_dv_timings_cap (struct v4l2_dv_timings *t , const struct
       v4l2_dv_timings_cap *cap , unsigned pclock_delta ,
       v4l2_check_dv_timings_fnc fnc , void *fnc_handle );

she returns a bool bestie, and she's taking five whole arguments. main character energy fr 💅

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🦋 ARGUMENTS 🦋

• t — the v4l2_enum_dv_timings struct. this is the one she's gonna fill in on the way out, so like… be nice to her 🫶
• cap — the v4l2_dv_timings_cap capabilities. basically the hardware's "what I'm willing to support" list 🙈
• pclock_delta — the maximum delta between t->pixelclock and the timing struct under consideration. iykyk, it's the tolerance window bestie 🌈
• fnc — callback to check if a given timings struct is OK. May be NULL. no callback? no problem, she's flexible ✨
• fnc_handle — a handle that is passed on to fnc. just hand it off, she'll take it from there 🎀

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💜 DESCRIPTION 💜

so the way that this function works is she tries to map the given timings to an entry in the full list of possible CEA-861 and DMT timings 🔥 iconic list, no notes.

and then — this is the good part — she filters out any timings that aren't supported, based on:

1. the hardware capabilities (cap, obviously 💅)
2. the callback function, if it's non-NULL 👑

On success she will fill in t with the found timings and return true 🥳 slay.

On failure she returns false 😭 no timings for you. we move.

ngl, that false return is the realest thing in this whole manpage. she's not gonna pretend. periodt. 💀

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⭐ SEE ALSO ⭐

• Kernel file ./include/media/v4l2-dv-timings.h
• v4l2_calc_timeperframe(9)
• v4l2_check_dv_timings_fnc(9)
• v4l2_valid_dv_timings(9)
• v4l2_enum_dv_timings_cap(9)
• v4l2_find_dv_timings_cea861_vic(9)
• v4l2_match_dv_timings(9)
• v4l2_print_dv_timings(9)
• v4l2_detect_cvt(9)
• v4l2_detect_gtf(9)
• v4l2_calc_aspect_ratio(9)
• v4l2_dv_timings_aspect_ratio(9)
• can_reduce_fps(9)
• struct v4l2_hdmi_colorimetry(9)

it's giving reading list 📚✨ she really said "know my friends" 💖

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and that's the whole page bestie, no cap 🧚💜

source: ./include/media · version/date: October 2026

okay bye ily, go find those timings ✨💅🍓