optc1_set_drr(9)

💅 optc1_set_drr — Kernel API Manual ✨

okay so bestie, welcome to the optc1_set_drr(9) page 💖 this one lives in the Kernel API Manual and it's honestly short and sweet — main character energy, minimal screen time, maximum impact 🎀

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🌸 NAME 🌸

optc1_set_drr — programs the dynamic refresh rate registers, specifically the m_OTGx_OTG_V_TOTAL_* ones 🦋 like, that's the whole job. it sets those registers and it slays while doing it ✨

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⭐ SYNOPSIS ⭐

void optc1_set_drr (struct timing_generator *optc , const struct
drr_params *params );

it returns void btw — no return value, no exit status, nothing to check, she just does the thing and leaves 👑 periodt.

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🎀 ARGUMENTS 🎀

• optc — a timing_generator instance 💫 that's your timing generator bestie right there.
• params — the parameters used for Dynamic Refresh Rate 🌈 iykyk.

lowkey, that's it. two arguments. no cap, no hidden extras, no environment variables, no flags, no defaults to memorize 🙈 she's a simple icon.

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🔥 SEE ALSO 🔥

• the kernel file ./drivers/gpu/drm/amd/display/dc/optc/dcn10/dcn10_optc.c 📁 (go read the source, bestie, it's giving lore)
• apply_front_porch_workaround(9)
• optc1_program_timing(9)
• optc1_set_vtg_params(9)
• optc1_set_timing_double_buffer(9)
• optc1_unblank_crtc(9)
• optc1_blank_crtc(9)
• optc1_enable_crtc(9)
• optc1_get_crc(9)

all of these are fr fr worth a look — the whole optc1 squad ate 💅✨

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and that's the page!! 🫶 shoutout to the source/version line ./drivers/gpu/drm/amd/display/... and to October 2026 for the date 🌸 consider this your cute lil sign-off — mwah 💖🎀💜