STRUCT DMUB_RB_CMD_COMMON(9)

💖 NAME 💖

okay so bestie, welcome to struct dmub_rb_cmd_common(9) — she's a real one, the Common command header, hanging out in the Kernel API Manual, section 9, where all the cool kernel structs live 🫶

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✨ SYNOPSIS ✨

here's the whole glow-up, no cuts, exactly as she is 👑

struct dmub_rb_cmd_common {
    struct dmub_cmd_header header;
    uint8_t cmd_buffer[DMUB_RB_CMD_SIZE - sizeof(struct
dmub_cmd_header)];
 };

like… she's honestly so simple and that's the vibe. a header up top and then a cmd_buffer that's literally sized DMUB_RB_CMD_SIZE - sizeof(struct dmub_cmd_header) — the math is mathing, the leftover bytes are the buffer, periodt 💅

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🎀 Members 🎀

ngl, the manpage itself is giving empty section energy 😭 — it says "Members" and then… nothing. no notes. no descriptions. absolutely zero elaboration.

so here's the tea we do have, straight from the synopsis and nowhere else (i'm not out here making things up, bestie, that's not the move 🙈):

• struct dmub_cmd_header header; — the header field, sitting pretty at the top of the struct 💖
• uint8_t cmd_buffer[DMUB_RB_CMD_SIZE - sizeof(struct dmub_cmd_header)]; — the command buffer, typed uint8_t, sized DMUB_RB_CMD_SIZE - sizeof(struct dmub_cmd_header) 🦋

that's it. that's the members. iconic minimalism, honestly ✨

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🌈 SEE ALSO 🌈

okay this is the part where she really shows off — the whole friend group, the entire group chat, everybody she's linked with 💀 these all live in the kernel file ./drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h:

• union dmub_addr(9)
• struct dmub_cursor_offload_pipe_data_dcn30_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn401_v1(9)
• struct dmub_cursor_offload_pipe_data_dcn60_v1(9)
• struct dmub_cursor_offload_pipe_data_v1(9)
• struct dmub_cursor_offload_payload_data_v1(9)
• struct dmub_cursor_offload_stream_v1(9)
• struct dmub_cursor_offload_v1(9)
• union dmub_fw_meta_feature_bits(9)
• struct dmub_fw_meta_info(9)
• union dmub_fw_meta(9)
• struct dmcub_trace_buf_entry(9)
• union dmub_fw_boot_status(9)
• enum dmub_fw_boot_status_bit(9)
• enum dmub_cursor_offload_comand_type(9)
• union dmub_fw_boot_options(9)
• enum dmub_shared_state_feature_id(9)
• struct dmub_shared_state_ips_fw(9)
• struct dmub_shared_state_ips_driver(9)
• struct dmub_shared_state_cursor_offload_v1(9)
• struct dmub_shared_state_feature_block(9)
• union dmub_gpint_data_register(9)
• enum dmub_out_cmd_type(9)
• struct dmub_cmd_header(9)
• struct dmub_cmd_PLAT_54186_wa(9)
• struct dmub_rb_cmd_PLAT_54186_wa(9)
• enum dmub_cmd_mall_type(9)
• struct dmub_rb_cmd_mall(9)
• enum dmub_cmd_cab_type(9)
• struct dmub_rb_cmd_cab_for_ss(9)
• enum dmub_fams2_allow_delay_check_mode(9)
• enum dmub_cmd_idle_opt_type(9)
• struct dmub_rb_cmd_idle_opt_dcn_restore(9)
• struct dmub_dcn_notify_idle_cntl_data(9)
• struct dmub_rb_cmd_idle_opt_dcn_notify_idle(9)
• enum dmub_idle_opt_dc_power_state(9)
• struct dmub_idle_opt_set_dc_power_state_data(9)
• struct dmub_rb_cmd_idle_opt_set_dc_power_state(9)
• struct dmub_clocks(9)
• enum dmub_cmd_clk_mgr_type(9)
• struct dmub_rb_cmd_clk_mgr_notify_clocks(9)
• struct dmub_cmd_digx_encoder_control_data(9)
• struct dmub_rb_cmd_digx_encoder_control(9)
• struct dmub_cmd_set_pixel_clock_data(9)
• struct dmub_cmd_enable_disp_power_gating_data(9)
• struct dmub_rb_cmd_enable_disp_power_gating(9)
• struct dmub_dig_transmitter_control_data_v1_7(9)
• union dmub_cmd_dig1_transmitter_control_data(9)
• struct dmub_rb_cmd_dig1_transmitter_control(9)
• struct dmub_rb_cmd_domain_control_data(9)
• struct dmub_rb_cmd_domain_control(9)
• struct dmub_rb_cmd_dpphy_init(9)
• enum dp_aux_request_action(9)
• enum aux_return_code_type(9)
• enum aux_channel_type(9)
• struct aux_transaction_parameters(9)
• struct dmub_rb_cmd_hpd_sense_notify(9)
• enum dmub_phy_fsm_state(9)
• enum dmub_abm_ace_curve_type(9)
• enum dmub_abm_histogram_type(9)
• enum dmub_cmd_panel_cntl_type(9)
• struct dmub_cmd_panel_cntl_data(9)
• struct dmub_rb_cmd_panel_cntl(9)
• struct dmub_cmd_cable_id_input(9)
• struct dmub_cmd_cursor_offload_init_data(9)
• struct dmub_rb_cmd_cursor_offload_init(9)
• struct dmub_cmd_cursor_offload_stream_data(9)
• struct dmub_rb_cmd_cursor_offload_stream_cntl(9)
• union dmub_rb_cmd(9)
• union dmub_rb_out_cmd(9)
• struct dmub_rb_init_params(9)
• struct dmub_rb(9)

like, every single one, i did not skip a crumb 🍓 she said "tag everyone" and i tagged everyone 💀👑

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aaaand that's the whole page, bestie! 🌸 teeny tiny struct, huge social circle, that's the balance 💖 this one's served straight from the Kernel file ./drivers/gpu/drm/amd/display/... and dated October 2026 — so go forth, read the header, love the header, and remember: struct dmub_rb_cmd_common(9) said what she said 💅✨🦋