drm_probe_ddc(9)

💅 drm_probe_ddc(9) — Kernel API Manual, but make it make sense

okay so bestie, welcome to drm_probe_ddc(9) from the Kernel API Manual ✨ this one is short and sweet and honestly kind of iconic in its simplicity. It's the little buddy whose whole personality is "hey… is there actually a display there??" 🫶

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🌸 NAME 🌸

drm_probe_ddc — probe DDC presence 💅

Like, literally just: check whether DDC is there or not. That's the gig. No cap.

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✨ SYNOPSIS ✨

bool drm_probe_ddc (struct i2c_adapter *adapter );

Returns a bool, takes one pointer to a struct i2c_adapter. Chef's kiss. Clean. Minimal. The way she serves 🎀

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🦋 ARGUMENTS 🦋

• adapter — the I2C adapter we're gonna probe 👀 that's the whole argument list, that's it, one adapter, she's lowkey efficient

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⭐ RETURN ⭐

True on success, false on failure. fr fr, that's the entire return contract 💀 no secret third option, no -1, no weird errno situation — just vibes and a boolean 🌈

iykyk: success = true, failure = false. Don't overthink her, she's not that kind of function 💜

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🧚 SEE ALSO 🧚

Kernel file ./drivers/gpu/drm/drm_edid.c — that's where she lives, go say hi 🎀

And the whole extended friend group, aka the EDID cinematic universe 👑 (every single one of these is (9) and every single one matters):

• drm_edid_header_is_valid(9)
• drm_edid_is_valid(9)
• drm_edid_valid(9)
• drm_do_probe_ddc_edid(9)
• drm_edid_override_connector_update(9)
• drm_edid_raw(9)
• drm_edid_alloc(9)
• drm_edid_dup(9)
• drm_edid_free(9)
• drm_get_edid(9)
• drm_edid_read_custom(9)
• drm_edid_read_ddc(9)
• drm_edid_read(9)
• drm_edid_get_product_id(9)
• drm_edid_print_product_id(9)
• drm_edid_get_panel_id(9)
• drm_edid_read_base_block(9)
• drm_get_edid_switcheroo(9)
• drm_edid_read_switcheroo(9)
• drm_edid_duplicate(9)
• edid_get_quirks(9)
• drm_match_cea_mode(9)
• drm_display_mode_from_cea_vic(9)
• drm_edid_match(9)
• drm_edid_get_monitor_name(9)
• drm_edid_to_sad(9)
• drm_edid_to_speaker_allocation(9)
• drm_av_sync_delay(9)
• drm_detect_hdmi_monitor(9)
• drm_detect_monitor_audio(9)
• drm_default_rgb_quant_range(9)
• drm_edid_connector_update(9)
• drm_edid_connector_add_modes(9)
• drm_connector_update_edid_property(9)
• drm_add_edid_modes(9)
• drm_add_modes_noedid(9)
• drm_hdmi_avi_infoframe_from_display_mode(9)
• drm_hdmi_avi_infoframe_quant_range(9)
• drm_hdmi_vendor_infoframe_from_display_mode(9)
• drm_edid_is_digital(9)

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and that's the whole page bestie, you ate that 🍓 this cutie came out of ./drivers/gpu/drm, dated October 2026, and she answers to exactly one name: drm_probe_ddc(9) 💖 slay, go probe that DDC ✨🦋💅