ufshcd_init_query(9)

💖 ufshcd_init_query(9) 💖

okay bestie, welcome to the Kernel API Manual page for ufshcd_init_query — yes, section (9), very kernel-internal, very main character. This one is literally about initializing the query response and request parameters, and it’s giving “setup era” ✨

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✨ NAME ✨

ufshcd_init_query — init the query response and request parameters 🫶

So pretty much: this is the helper that handles the init moment for the query response and request parameters. No cap, that’s the whole assignment.

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🌸 SYNOPSIS 🌸

void ufshcd_init_query (struct ufs_hba *hba , struct ufs_query_req
**request , struct ufs_query_res **response , enum query_opcode opcode ,
u8 idn , u8 index , u8 selector );

She takes hba, two pointer addresses (request and response), an opcode, and a little trio of u8 identifiers. Very structured, very “know what you’re passing” energy 💅

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🎀 ARGUMENTS 🎀

• hba — per-adapter instance. That’s the adapter’s own little universe, bestie.
• request — address of the request pointer to be initialized.
• response — address of the response pointer to be initialized.
• opcode — operation to perform.
• idn — flag idn to access.
• index — LU number to access.
• selector — query/flag/descriptor further identification.

Like, every argument is doing its own tiny job, and together they’re the whole vibe check for this call 💖

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🦋 SEE ALSO 🦋

The kernel file in question is ./drivers/ufs/core/ufshcd.c, and the whole squad of related references is right here — not me dropping the entire group chat 💀

ufshcd_enable_intr(9),
ufshcd_disable_intr(9), ufshcd_print_trs_all(9),
ufshcd_print_pwr_info(9), ufshcd_wait_for_register(9),
ufshcd_get_intr_mask(9), ufshcd_get_ufs_version(9),
ufshcd_is_device_present(9), ufshcd_get_tr_ocs(9), ufshcd_utrl_clear(9),
ufshcd_utmrl_clear(9), ufshcd_get_lists_status(9),
ufshcd_get_req_rsp(9), ufshcd_is_exception_event(9),
ufshcd_reset_intr_aggr(9), ufshcd_config_intr_aggr(9),
ufshcd_disable_intr_aggr(9), ufshcd_enable_run_stop_reg(9),
ufshcd_hba_start(9), ufshcd_is_hba_active(9), ufshcd_pm_qos_init(9),
ufshcd_pm_qos_exit(9), ufshcd_pm_qos_update(9), ufshcd_set_clk_freq(9),
ufshcd_scale_clks(9), ufshcd_is_devfreq_scaling_required(9),
ufshcd_pause_command_processing(9), ufshcd_resume_command_processing(9),
ufshcd_scale_gear(9), ufshcd_devfreq_scale(9), ufshcd_hold(9),
ufshcd_send_command(9), ufshcd_copy_sense_data(9),
ufshcd_copy_query_response(9), ufshcd_hba_capabilities(9),
ufshcd_ready_for_uic_cmd(9), ufshcd_get_upmcrs(9),
ufshcd_dispatch_uic_cmd(9), ufshcd_wait_for_uic_cmd(9),
__ufshcd_send_uic_cmd(9), ufshcd_send_uic_cmd(9), ufshcd_sgl_to_prdt(9),
ufshcd_map_sg(9), ufshcd_prepare_req_desc_hdr(9),
ufshcd_prepare_utp_scsi_cmd_upiu(9),
ufshcd_prepare_utp_query_req_upiu(9), ufshcd_compose_devman_upiu(9),
ufshcd_comp_scsi_upiu(9), ufshcd_upiu_wlun_to_scsi_wlun(9),
ufshcd_queuecommand(9), ufshcd_dev_cmd_completion(9),
ufshcd_exec_dev_cmd(9), ufshcd_query_flag(9), ufshcd_query_attr(9),
ufshcd_query_attr_retry(9), ufshcd_query_attr_qword(9),
ufshcd_query_descriptor_retry(9), ufshcd_read_desc_param(9), struct
uc_string_id(9), ufshcd_read_string_desc(9),
ufshcd_read_unit_desc_param(9), ufshcd_memory_alloc(9),
ufshcd_host_memory_configure(9), ufshcd_dme_link_startup(9),
ufshcd_dme_reset(9), ufshcd_dme_enable(9), ufshcd_dme_set_attr(9),
ufshcd_dme_get_attr(9), ufshcd_dme_rmw(9), ufshcd_uic_pwr_ctrl(9),
ufshcd_uic_tx_eqtr(9), ufshcd_send_bsg_uic_cmd(9),
ufshcd_uic_change_pwr_mode(9), ufshcd_get_max_pwr_mode(9),
ufshcd_dme_change_power_mode(9), ufshcd_change_power_mode(9),
ufshcd_config_pwr_mode(9), ufshcd_complete_dev_init(9),
ufshcd_make_hba_operational(9), ufshcd_hba_stop(9),
ufshcd_hba_execute_hce(9), ufshcd_link_startup(9),
ufshcd_verify_dev_init(9), ufshcd_setup_links(9), ufshcd_lu_init(9),
ufshcd_sdev_init(9), ufshcd_change_queue_depth(9),
ufshcd_sdev_configure(9), ufshcd_sdev_destroy(9),
ufshcd_scsi_cmd_status(9), ufshcd_transfer_rsp_status(9),
ufshcd_uic_cmd_compl(9), ufshcd_compl_one_cqe(9),
__ufshcd_transfer_req_compl(9), ufshcd_mcq_compl_pending_transfer(9),
ufshcd_transfer_req_compl(9), ufshcd_disable_ee(9), ufshcd_enable_ee(9),
ufshcd_enable_auto_bkops(9), ufshcd_disable_auto_bkops(9),
ufshcd_force_reset_auto_bkops(9), ufshcd_bkops_ctrl(9),
ufshcd_exception_event_handler(9), ufshcd_quirk_dl_nac_errors(9),
ufshcd_abort_all(9), ufshcd_err_handler(9), ufshcd_update_uic_error(9),
ufshcd_check_errors(9), ufshcd_tmc_handler(9),
ufshcd_handle_mcq_cq_events(9), ufshcd_sl_intr(9), ufshcd_intr(9),
ufshcd_issue_tm_cmd(9), ufshcd_issue_devman_upiu_cmd(9),
ufshcd_exec_raw_upiu_cmd(9), ufshcd_advanced_rpmb_req_handler(9),
ufshcd_eh_device_reset_handler(9), ufshcd_try_to_abort_task(9),
ufshcd_abort(9), ufshcd_process_probe_result(9),
ufshcd_host_reset_and_restore(9), ufshcd_reset_and_restore(9),
ufshcd_eh_host_reset_handler(9), ufshcd_get_max_icc_level(9),
ufshcd_find_max_sup_active_icc_level(9), ufshcd_scsi_add_wlus(9),
ufshcd_create_device_id(9), ufshcd_quirk_tune_host_pa_tactivate(9),
ufshcd_quirk_override_pa_h8time(9), ufshcd_add_lus(9),
ufshcd_get_op_mode(9), ufshcd_probe_hba(9), ufshcd_async_scan(9),
ufshcd_set_dev_pwr_mode(9), ufshcd_suspend(9), ufshcd_resume(9),
ufshcd_system_suspend(9), ufshcd_system_resume(9),
ufshcd_runtime_suspend(9), ufshcd_runtime_resume(9), ufshcd_remove(9),
ufshcd_set_dma_mask(9), ufshcd_devres_release(9), ufshcd_alloc_host(9),
ufshcd_init(9)

And that’s the whole friend group, no gatekeeping 💜

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Signed off from ./drivers/ufs/core, dated October 2026 — mwah, bestie, stay kernel-pilled 😭💅✨