dm_test_brig...ge_null_caps(9)

🎀 NAME 🎀

okay so bestie, this is a Kernel API Manual page, and the title up top is dm_test_brig...ge_null_caps(9) ✨ The actual star of the show is dm_test_brightness_range_null_caps — Test Brightness range null caps 💅 periodt.

🌸 SYNOPSIS 🌸

the whole vibe is literally this one line, no cap:

void dm_test_brightness_range_null_caps (struct kunit *test );

🦋 ARGUMENTS 🦋

• test — the KUnit test context, aka the little test-context bestie 🧠💖

✨ SEE ALSO ✨

okay bestie, the reference shelf is long and iconic — every single one is right here, exactly as written 👑

• Kernel file: ./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_backlight_test.c
• dm_test_find_stream_with_link_returns_match(9)
• dm_test_find_stream_with_link_missing(9)
• dm_test_backlight_set_level_connector_off(9)
• dm_test_backlight_set_level_no_stream(9)
• dm_test_backlight_set_level_aux_programs_power_module(9)
• dm_test_backlight_set_level_pwm_programs_power_module(9)
• dm_test_backlight_set_level_reallows_idle(9)
• dm_test_backlight_update_status_no_stream(9)
• dm_test_backlight_get_level_pwm_success(9)
• dm_test_backlight_get_level_pwm_error(9)
• dm_test_backlight_get_level_aux_success(9)
• dm_test_backlight_get_level_aux_error(9)
• dm_test_backlight_get_brightness_uses_device_index(9)
• dm_test_register_backlight_device_negative_index(9)
• dm_test_register_backlight_device_success(9)
• dm_test_panel_power_savings_show_maps_disable_to_zero(9)
• dm_test_panel_power_savings_show_reports_level(9)
• dm_test_panel_power_savings_store_sets_disable(9)
• dm_test_panel_power_savings_store_forbidden(9)
• dm_test_panel_power_savings_store_rejects_invalid_text(9)
• dm_test_panel_power_savings_store_rejects_out_of_range(9)
• dm_test_backlight_device_index_matches_second(9)
• dm_test_backlight_device_index_missing_fallback(9)
• dm_test_backlight_caps_valid_short_circuit(9)
• dm_test_backlight_caps_aux_support_noop(9)
• dm_test_backlight_caps_non_aux_sets_defaults(9)
• dm_test_brightness_range_pwm(9)
• dm_test_brightness_range_aux(9)
• dm_test_brightness_to_user_null_caps(9)
• dm_test_brightness_to_user_below_min(9)
• dm_test_brightness_to_user_at_max(9)
• dm_test_brightness_to_user_at_min(9)
• dm_test_brightness_to_user_midpoint_pwm(9)
• dm_test_brightness_from_user_null_caps(9)
• dm_test_brightness_from_user_zero(9)
• dm_test_brightness_from_user_max(9)
• dm_test_brightness_from_user_aux(9)
• dm_test_custom_brightness_no_data_points(9)
• dm_test_custom_brightness_debug_mask_disables(9)
• dm_test_custom_brightness_exact_match(9)
• dm_test_custom_brightness_below_first(9)
• dm_test_custom_brightness_interpolation(9)
• dm_test_custom_brightness_above_last(9)
• dm_test_custom_brightness_single_data_point(9)
• dm_test_custom_brightness_lower_lum_zero(9)
• dm_test_brightness_to_user_above_max(9)
• dm_test_brightness_from_user_midrange(9)
• dm_test_brightness_from_user_with_curve(9)
• dm_test_brightness_range_zero_signals(9)
• dm_test_backlight_fill_props_ac_linear(9)
• dm_test_backlight_fill_props_dc_nonlinear(9)
• dm_test_backlight_fill_props_default_range(9)
• dm_test_update_connector_ext_caps_negative_bl_idx(9)
• dm_test_update_connector_ext_caps_non_edp(9)
• dm_test_update_connector_ext_caps_oled_defaults(9)
• dm_test_update_connector_ext_caps_luminance_values(9)
• dm_test_update_connector_ext_caps_force_aux(9)
• dm_test_update_connector_ext_caps_force_pwm(9)
• dm_test_should_create_sysfs_abm_forced(9)
• dm_test_should_create_sysfs_non_edp(9)
• dm_test_should_create_sysfs_no_backlight_index(9)
• dm_test_should_create_sysfs_oled_no_cacp(9)
• dm_test_should_create_sysfs_oled_cacp(9)
• dm_test_should_create_sysfs_lcd_panel(9)
• dm_test_setup_backlight_device_non_edp(9)
• dm_test_setup_backlight_device_connection_none(9)
• dm_test_setup_backlight_device_max_edps(9)
• dm_test_setup_backlight_device_oled_success(9)
• dm_test_setup_backlight_device_attaches_abm_property(9)

byeee bestie 💜 the footer situation is source/version ./drivers/gpu/drm/amd/display/..., date October 2026, and it also shows dm_test_brig...ge_null_caps(9) 🫶✨