dm_test_get_...ysfs_allowed(9)
πΈ dm_test_get_...ysfs_allowed(9) β the Kernel API Manual glow-up β¨
okay so bestie, welcome to the Kernel API Manual entry for dm_test_get_...ysfs_allowed(9) β yes the title is literally abbreviated with dots in the middle, that's just how it's filed, don't @ me π
. We're gonna get you through this together, and no, it's not scary, it's like a two-line manpage with a truly legendary SEE ALSO list attached. Buckle up π¦
π NAME π
dm_test_get_property_abm_sysfs_allowed - Test get abm returns sysfs control
like, the whole personality of this thing in one line: it's a test, it's about get abm, and the vibe it's checking is whether the sysfs control comes back. periodt β¨
π SYNOPSIS π
void dm_test_get_property_abm_sysfs_allowed (struct kunit *test );
that's it. that's the whole signature. she's a void girlie, she takes one pointer and she does not return anything because she doesn't need to π
πΈ ARGUMENTS πΈ
testβ The KUnit test context π this is the lil test-world object that KUnit hands you so your test has somewhere to live and something to report back to. that's the tea π
ngl bestie, that's genuinely the only argument. no hidden extra params, no surprise defaults, no env vars, nothing to memorise. iconic behaviour, honestly π
β SEE ALSO β
okay so this is the part where the manpage absolutely ate β the SEE ALSO list is huge, and I mean huge huge, so I'm giving you every single one because we do not skip entries in this house π«Ά. Same order as the original, all (9), all exact π
First up, the source file where the actual code lives, because you will want to go read it:
./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_connector_test.c
and now the friends of the family, in order:
dm_test_subconnector_type_none(9),dm_test_subconnector_type_vga(9),dm_test_subconnector_type_dvi_converter(9),dm_test_subconnector_type_dvi_dongle(9),dm_test_subconnector_type_hdmi_converter(9),dm_test_subconnector_type_hdmi_dongle(9),dm_test_subconnector_type_mismatched(9),dm_test_subconnector_type_default_unknown(9)dm_test_content_type_no_data(9),dm_test_content_type_graphics(9),dm_test_content_type_photo(9),dm_test_content_type_cinema(9),dm_test_content_type_game(9),dm_test_content_type_unknown_defaults_no_data(9)dm_test_adjust_colour_depth_fits_at_888(9),dm_test_adjust_colour_depth_reduces_to_888(9),dm_test_adjust_colour_depth_10bpc_passes(9),dm_test_adjust_colour_depth_420_halves_clk(9),dm_test_adjust_colour_depth_420_reduces(9),dm_test_adjust_colour_depth_reduces_12bpc_to_10bpc(9),dm_test_adjust_colour_depth_16bpc_no_fallback(9),dm_test_adjust_colour_depth_none_fits(9),dm_test_adjust_colour_depth_invalid_depth(9)dm_test_output_color_space_default_rgb_full(9),dm_test_output_color_space_default_rgb_limited(9),dm_test_output_color_space_default_ycbcr709(9),dm_test_output_color_space_default_ycbcr601_limited(9),dm_test_output_color_space_bt601_y_only(9),dm_test_output_color_space_bt601(9),dm_test_output_color_space_bt709(9),dm_test_output_color_space_bt709_y_only(9),dm_test_output_color_space_oprgb(9),dm_test_output_color_space_bt2020_rgb(9),dm_test_output_color_space_bt2020_rgb_limited(9),dm_test_output_color_space_default_rgb_auto_hdmi_cta(9),dm_test_output_color_space_default_rgb_auto_hdmi_vga(9),dm_test_output_color_space_default_rgb_auto_dp_cta(9),dm_test_output_color_space_default_rgb_full_hdmi_cta(9),dm_test_output_color_space_bt2020_rgb_auto_hdmi_cta(9),dm_test_output_color_space_bt2020_ycc(9),dm_test_output_color_space_default_ycbcr709_y_only(9),dm_test_output_color_space_default_ycbcr601(9),dm_test_output_color_space_bt2020_ycc_rgb_encoding(9),dm_test_output_color_space_bt2020_ycc_rgb_encoding_limited(9),dm_test_output_color_space_bt2020_rgb_ycc_encoding(9)dm_test_convert_color_depth_bpc_mappings(9),dm_test_convert_color_depth_bpc_unknown(9),dm_test_color_depth_from_info_bpc8(9),dm_test_color_depth_from_info_bpc10(9),dm_test_color_depth_from_info_zero_bpc_defaults_888(9),dm_test_color_depth_from_info_requested_bpc_caps(9),dm_test_color_depth_from_info_y420_default(9),dm_test_color_depth_from_info_y420_10bpc(9),dm_test_color_depth_from_info_y420_12bpc(9),dm_test_color_depth_from_info_y420_16bpc(9),dm_test_color_depth_from_info_requested_odd_bpc(9),dm_test_color_depth_from_info_unsupported_bpc(9)dm_test_to_connector_type_hdmi(9),dm_test_to_connector_type_edp(9),dm_test_to_connector_type_lvds(9),dm_test_to_connector_type_rgb(9),dm_test_to_connector_type_dp(9),dm_test_to_connector_type_dp_mst(9),dm_test_to_connector_type_dvi_dvii(9),dm_test_to_connector_type_dual_link_dvii(9),dm_test_to_connector_type_dvi_dvid(9),dm_test_to_connector_type_dual_link_dvid(9),dm_test_to_connector_type_virtual(9),dm_test_to_connector_type_unknown(9)dm_test_is_duplicate_mode_empty_list(9),dm_test_is_duplicate_mode_match(9),dm_test_is_duplicate_mode_no_match(9),dm_test_is_duplicate_mode_same_size_different_clock(9)dm_test_encoder_crtc_mask_1(9),dm_test_encoder_crtc_mask_2(9),dm_test_encoder_crtc_mask_3(9),dm_test_encoder_crtc_mask_4(9),dm_test_encoder_crtc_mask_5(9),dm_test_encoder_crtc_mask_6(9),dm_test_encoder_crtc_mask_default(9)dm_test_aspect_ratio_no_data(9),dm_test_aspect_ratio_4_3(9),dm_test_aspect_ratio_16_9(9),dm_test_aspect_ratio_64_27(9),dm_test_aspect_ratio_256_135(9)dm_test_copy_crtc_timing_copies_all_fields(9),dm_test_copy_crtc_timing_leaves_non_crtc_fields(9),dm_test_decide_crtc_timing_scale_enabled(9),dm_test_decide_crtc_timing_matching_mode(9),dm_test_decide_crtc_timing_no_copy(9),dm_test_decide_crtc_timing_no_crtc_clock(9)dm_test_funcs_reset_sets_defaults(9),dm_test_funcs_reset_edp_abm_level(9),dm_test_funcs_reset_edp_abm_disabled(9)dm_test_atomic_dup_state_copies_fields(9)dm_test_fill_hdr_null_metadata(9),dm_test_fill_hdr_zeroes_output(9)dm_test_set_property_scaling_center(9),dm_test_set_property_scaling_aspect(9),dm_test_set_property_scaling_fullscreen(9),dm_test_set_property_scaling_none(9),dm_test_set_property_scaling_unchanged(9),dm_test_set_property_underscan_hborder(9),dm_test_set_property_underscan_vborder(9),dm_test_set_property_underscan_enable(9),dm_test_set_property_abm_sysfs_control(9),dm_test_set_property_abm_level_off(9),dm_test_set_property_abm_level_value(9),dm_test_set_property_unknown(9)dm_test_get_property_scaling_center(9),dm_test_get_property_scaling_aspect(9),dm_test_get_property_scaling_full(9),dm_test_get_property_scaling_off(9),dm_test_get_property_underscan_borders(9),dm_test_get_property_abm_level(9),dm_test_get_property_abm_disabled_zero(9),dm_test_get_property_unknown(9)dm_test_highest_refresh_writeback_null(9),dm_test_highest_refresh_cached_base(9),dm_test_highest_refresh_preferred_mode(9)dm_test_is_freesync_video_mode_null_mode(9),dm_test_is_freesync_video_mode_match(9),dm_test_is_freesync_video_mode_no_match(9)dm_test_cacp_caps_unsupported_ip(9),dm_test_cacp_caps_excluded_ip_316(9),dm_test_cacp_caps_edp_oled_supported(9),dm_test_cacp_caps_lvds_oled_supported(9),dm_test_cacp_caps_non_edp_signal(9),dm_test_cacp_caps_lcd_panel(9)dm_test_set_panel_type_vsdb_oled(9),dm_test_set_panel_type_vsdb_miniled(9),dm_test_set_panel_type_dpcd_oled(9),dm_test_set_panel_type_dpcd_miniled(9),dm_test_set_panel_type_did_oled(9),dm_test_set_panel_type_did_lcd(9),dm_test_set_panel_type_vendor_lum_heuristic(9),dm_test_set_panel_type_defaults_to_lcd(9)dm_test_update_subconnector_dp_with_sink(9),dm_test_update_subconnector_dp_no_sink(9),dm_test_update_subconnector_non_dp_noop(9)dm_test_fbc_init_no_compressor(9),dm_test_fbc_init_non_edp(9),dm_test_fbc_init_already_allocated(9),dm_test_fbc_init_no_modes(9)dm_test_detect_mst_no_connectors(9),dm_test_detect_mst_skips_writeback(9),dm_test_detect_mst_non_mst_link(9),dm_test_detect_mst_branch_without_aux(9)dm_test_find_first_crtc_match(9),dm_test_find_first_crtc_no_match(9),dm_test_find_first_crtc_empty_state(9),dm_test_find_first_crtc_skips_null_ptr(9),dm_test_find_first_crtc_returns_first(9)dm_test_set_panel_type_samsung_miniled(9),dm_test_set_panel_type_samsung_below_threshold(9),dm_test_set_panel_type_default_lcd(9)dm_test_cacp_caps_edp_supported(9),dm_test_cacp_caps_lvds_supported(9),dm_test_cacp_caps_old_ip_unsupported(9),dm_test_cacp_caps_ip_3_1_6_unsupported(9),dm_test_cacp_caps_non_edp_lvds_unsupported(9),dm_test_cacp_caps_lcd_unsupported(9)dm_test_fill_stream_borders_zeroed(9),dm_test_fill_stream_rgb_defaults(9),dm_test_fill_stream_sync_polarity_positive(9),dm_test_fill_stream_sync_polarity_negative(9),dm_test_fill_stream_inherits_old_stream(9),dm_test_fill_stream_timing_from_crtc(9),dm_test_fill_stream_color_depth_requested_bpc(9),dm_test_fill_stream_content_type(9),dm_test_fill_stream_aspect_ratio(9),dm_test_fill_stream_encoding_from_caller_ycbcr420(9),dm_test_fill_stream_encoding_from_caller_ycbcr422(9),dm_test_fill_stream_encoding_from_caller_ycbcr444(9),dm_test_fill_stream_hdmi_ep_clamps_depth(9),dm_test_fill_stream_non_hdmi_ep_keeps_depth(9)dm_test_create_stream_fake_sink_success(9),dm_test_create_stream_sets_dm_context(9),dm_test_create_stream_virtual_signal(9),dm_test_create_stream_scaling_src(9),dm_test_create_stream_existing_sink(9)dm_test_detect_force_on(9),dm_test_detect_force_on_digital(9),dm_test_detect_force_off(9),dm_test_detect_sink_present(9),dm_test_detect_no_sink(9)dm_test_poll_dac_load_returns_cached(9)dm_test_late_register_non_dp_succeeds(9),dm_test_unregister_non_dp_noop(9),dm_test_destroy_minimal(9),dm_test_destroy_releases_dc_sink(9),dm_test_destroy_releases_dc_em_sink(9)dm_test_encoder_disable_noop(9)dm_test_atomic_check_edp_native_keeps_scaling(9),dm_test_atomic_check_lvds_non_native_enables_scaling(9),dm_test_atomic_check_non_mst_returns_zero(9)dm_test_hdmi_cec_unset_edid_no_notifier(9),dm_test_create_eml_sink_no_edid(9),dm_test_handle_edid_mgmt_dp_sets_link_caps(9),dm_test_handle_edid_mgmt_non_dp_leaves_caps(9),dm_test_funcs_force_no_edid(9)dm_test_validate_stream_null_stream(9)dm_test_to_encoder_no_encoder(9),dm_test_to_encoder_returns_attached(9)dm_test_native_mode_no_encoder(9),dm_test_native_mode_empty_probed_zeroes_clock(9),dm_test_native_mode_copies_preferred(9)dm_test_create_common_mode_overrides(9),dm_test_add_common_modes_non_edp_noop(9),dm_test_add_common_modes_edp_adds(9)dm_test_ddc_get_modes_null_edid(9)dm_test_add_fs_modes_no_preferred_mode(9),dm_test_add_freesync_modes_null_edid_noop(9)dm_test_i2c_func_returns_flags(9),dm_test_i2c_xfer_no_ddc_pin(9)dm_test_get_amd_vsdb_unsupported(9),dm_test_get_amd_vsdb_supported(9),dm_test_parse_hdmi_amd_vsdb_null_edid(9),dm_test_parse_hdmi_amd_vsdb_no_extensions(9),dm_test_parse_hdmi_amd_vsdb_no_cea_ext(9)dm_test_parse_displayid_vrr_null_edid(9),dm_test_parse_displayid_vrr_no_displayid(9),dm_test_parse_displayid_vrr_sets_range(9)dm_test_mode_valid_interlace_rejected(9),dm_test_mode_valid_dblscan_rejected(9)dm_test_hdmi_cec_set_edid_no_notifier(9),dm_test_s3_handle_hdmi_cec_suspend(9),dm_test_s3_handle_hdmi_cec_resume(9)dm_test_create_validate_stream_null_dm_state(9)dm_test_update_after_detect_mst_noop(9),dm_test_update_after_detect_sink_unchanged(9)dm_test_update_scaling_null_mode(9),dm_test_update_scaling_fullscreen_default(9),dm_test_update_scaling_rmx_full(9),dm_test_update_scaling_rmx_aspect_pillarbox(9),dm_test_update_scaling_rmx_aspect_letterbox(9),dm_test_update_scaling_rmx_center(9),dm_test_update_scaling_underscan(9)
likeβ¦ she's connected to everyone. main character energy of the connector-test suite, honestly π₯π
lowkey the way to use this page: you sawdm_test_get_property_abm_sysfs_allowedsomewhere, you looked it up, and now you know it's a KUnit test that takes astruct kunit *testand checks whether get abm hands back the sysfs control. and if you want the sibling tests, they're all up there in SEE ALSO, no cap π§
and that's the whole page, bestie β you read it, you understood it, you slayed π source and version business for the sign-off: ./drivers/gpu/drm/amd/display/..., dated October 2026, filed under dm_test_get_...ysfs_allowed(9) πβ¨ bye ily π«Ά
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