dmub_srv_wai...r_inbox0_ack(9)

💌 NAME 💌

dmub_srv_wait_for_inbox0_ack — bestie, this is the one that just waits for DMUB to ACK your INBOX0 command ✨ (yes, we're in the dmub_srv_wai...r_inbox0_ack(9) manual page, welcome, come sit with me 🫶)

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🌸 SYNOPSIS 🌸

enum dmub_status dmub_srv_wait_for_inbox0_ack (struct dmub_srv *dmub ,
uint32_t timeout_us );

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🎀 ARGUMENTS 🎀

• dmub — the dmub service 💅 like, the whole service struct, she's the main character here
• timeout_us — the maximum number of microseconds to wait ⏳ so if it's not acking by then, we're out, periodt

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🦋 DESCRIPTION 🦋

Okay so literally all this does is wait for DMUB to ACK the INBOX0 message 😌✨ that's it, that's the whole vibe. No cap. She waits, she hopes, she comes back with a status.

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🔥 RETURN 🔥

The tea on what you get back ☕:

• DMUB_STATUS_OK — success, we ate, everything slayed 👑
• DMUB_STATUS_INVALID — hw_init false or the hw function does not exist 😭 like the hardware said "who?"
• DMUB_STATUS_TIMEOUT — waiting for the ack timed out 💀 she waited, she tried, no ack came

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🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/amd/display/dmub/dmub_srv.h 📁 — and now the whole friend group, in order, nobody left behind:

• DMUB interface and operation(9)
• struct dmub_region(9)
• struct dmub_window(9)
• struct dmub_fb(9)
• struct dmub_srv_region_params(9)
• struct dmub_srv_fw_meta_info_params(9)
• struct dmub_srv_region_info(9)
• struct dmub_srv_memory_params(9)
• struct dmub_srv_fb_info(9)
• struct dmub_soc_fb_info(9)
• struct dmub_diagnostic_data(9)
• struct dmub_preos_info(9)
• struct dmub_srv_base_funcs(9)
• struct dmub_srv_hw_funcs(9)
• struct dmub_srv_create_params(9)
• struct dmub_srv(9)
• struct dmub_notification(9)
• dmub_srv_create(9)
• dmub_srv_destroy(9)
• dmub_srv_calc_region_info(9)
• dmub_srv_has_hw_support(9)
• dmub_srv_is_hw_init(9)
• dmub_srv_hw_init(9)
• dmub_srv_hw_reset(9)
• dmub_srv_fb_cmd_queue(9)
• dmub_srv_fb_cmd_execute(9)
• dmub_srv_wait_for_hw_pwr_up(9)
• dmub_srv_wait_for_auto_load(9)
• dmub_srv_wait_for_phy_init(9)
• dmub_srv_wait_for_pending(9)
• dmub_srv_wait_for_idle(9)
• dmub_srv_send_gpint_command(9)
• dmub_srv_get_gpint_response(9)
• dmub_srv_get_gpint_dataout(9)
• dmub_srv_flush_buffer_mem(9)
• dmub_srv_get_fw_boot_status(9)
• dmub_srv_send_inbox0_cmd(9)
• dmub_srv_subvp_save_surf_addr(9)
• dmub_srv_set_power_state(9)
• dmub_srv_reg_cmd_execute(9)
• dmub_srv_cmd_get_response(9)
• dmub_srv_sync_inboxes(9)
• dmub_srv_wait_for_inbox_free(9)
• dmub_srv_update_inbox_status(9)
• dmub_srv_get_preos_info(9)
• dmub_srv_get_fw_meta_info_from_raw_fw(9)

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Okay that's the whole page, ily, go read the source bestie 🫶 — it lives at ./drivers/gpu/drm/amd/display/..., dated October 2026, and yeah, the page name is still dmub_srv_wai...r_inbox0_ack(9) because apparently truncation is also iconic 💅✨