ufshcd_verify_dev_init(9)

💖 NAME 💖

okay so bestie, this is the Kernel API Manual page for ufshcd_verify_dev_init(9) — and the name is literally telling you what it does: Verify device initialization 💅✨

---

✨ SYNOPSIS ✨

int ufshcd_verify_dev_init (struct ufs_hba *hba );

---

🎀 ARGUMENTS 🎀

• hba — the per-adapter instance, aka the main-character struct for this call 🫶

---

🦋 DESCRIPTION 🦋

So here’s the vibe: this function sends a NOP OUT UPIU and waits for a NOP IN response to check whether the device Transport Protocol (UTP) layer is ready after a reset. It’s basically giving the device a little “u up?” text 💬✨

If the UTP layer at the device side is not initialized, it may not respond with NOP IN UPIU within timeout of NOP_OUT_TIMEOUT, and we retry sending NOP OUT for NOP_OUT_RETRIES iterations. No cap, that’s the whole check 🔁💖

---

🔥 RETURN 🔥

Here’s the tea, bestie:

• 0 upon success 🎉
• > 0 in case the UFS device reported an OCS error 😭
• < 0 if another error occurred 💀

---

🌈 SEE ALSO 🌈

Kernel file: ./drivers/ufs/core/ufshcd.c — and now the whole friend group, every single one, no skips 👑✨

• 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_init_query(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_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)

---

okay that’s literally the whole page, bestie 🫶 — signing off from ./drivers/ufs/core, October 2026, for ufshcd_verify_dev_init(9) 💖✨