dc_stream_get_crc(9)

💖 dc_stream_get_crc(9) — Kernel API Manual 💖

🌸 NAME 🌸

dc_stream_get_crc — Get CRC values for the given stream. 🎯

✨ SYNOPSIS ✨

bool dc_stream_get_crc (struct dc *dc , struct dc_stream_state *stream ,
uint8_t idx , uint32_t *r_cr , uint32_t *g_y , uint32_t *b_cb );

🌈 ARGUMENTS 🌈

okay so here’s the cast of inputs, bestie:

• dc — DC object.
• stream — The DC stream state of the stream to get CRCs from.
• idx — index of crc engine to get CRC from.
• r_cr — CRC value for the red component.
• g_y — CRC value for the green component.
• b_cb — CRC value for the blue component.

💅 DESCRIPTION 💅

Before you can pull these CRCs, you have to call dc_stream_configure_crc first to enable them. That’s the prerequisite, periodt — no setup, no CRC tea. 🫖✨

🔥 RETURN 🔥

It returns false if the stream is not found, or if CRCs are not enabled. That’s the whole return situation. 💀

👑 SEE ALSO 👑

the whole squad, fr fr:

• Kernel file ./drivers/gpu/drm/amd/display/dc/core/dc.c Overview(9)
• dc_stream_get_last_used_drr_vtotal(9)
• dc_stream_configure_crc(9)
• dc_stream_adjust_vmin_vmax(9)
• dc_commit_state_no_check(9)
• dc_commit_streams(9)
• dc_check_state_update(9)
• dc_check_update_surfaces_for_stream(9)
• update_seamless_boot_flags(9)
• update_planes_and_stream_state(9)
• dc_check_address_only_update(9)
• build_dmub_cmd_list(9)
• could_mpcc_tree_change_for_active_pipes(9)
• commit_minimal_transition_state_in_dc_update(9)
• commit_minimal_transition_state(9)
• dc_update_state(9)
• dc_update_planes_and_stream(9)
• dc_enable_dcmode_clk_limit(9)
• dc_is_dmub_outbox_supported(9)
• dc_enable_dmub_notifications(9)
• dc_enable_dmub_outbox(9)
• dc_process_dmub_aux_transfer_async(9)
• dc_process_dmub_set_config_async(9)
• dc_process_dmub_set_mst_slots(9)
• dc_process_dmub_dpia_set_tps_notification(9)
• dc_process_dmub_dpia_hpd_int_enable(9)
• dc_print_dmub_diagnostic_data(9)
• dc_disable_accelerated_mode(9)
• dc_notify_vsync_int_state(9)
• dc_set_edp_power(9)
• dc_get_power_profile_for_dc_state(9)
• dc_get_det_buffer_size_from_state(9)
• dc_get_host_router_index(9)
• should_commit_intermediate_context(9)
• dc_update_probes_prepare(9)
• dc_update_probes_execute(9)

cute lil sign-off: source/version is ./drivers/gpu/drm/amd/display/..., dated October 2026 — mwah, bestie 💋🫶