ufshcd_enable_ee(9)
β¨ ufshcd_enable_ee β¨
okay so this is a page from the Kernel API Manual, section 9 β ufshcd_enable_ee(9) β and it's literally just one tiny function that does one very specific thing. short queen behavior, we respect it π
πΈ NAME πΈ
ufshcd_enable_ee β enable exception event π
π¦ SYNOPSIS π¦
int ufshcd_enable_ee (struct ufs_hba *hba , u16 mask );
π ARGUMENTS π
hbaβ the per-adapter instance, aka the one host controller bus adapter we're talking about here π«Άmaskβ the exception event we wanna enable, bestie. that's the one β¨
π DESCRIPTION π
so what this does is: it enables the corresponding exception event in the device β like, on the actual device side, not just in your head β so the device is allowed to alert the host when something critical goes down π₯
that's it. that's the whole vibe. it's giving "open the door so the device can yell at you if things go wrong," no cap π
β RETURN β
zeroon success π- a
non-zeroerror value on failure π
like every good well-behaved kernel function. periodt.
π SEE ALSO π
first up, the kernel file this whole family lives in: ./drivers/ufs/core/ufshcd.c π§
and now the entire friend group β yes, all of them, we are not skipping a single one, i don't do that π
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_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_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)
likeβ¦ that's the whole roster π going through it one by one is a lot, but we did it, and we didn't lose anybody π«‘π
ngl, this one's short but it matters β exception events are literally how the device tells you something critical happened, so enabling the right one is kinda iconic of it π₯
that's the whole page, bestie π this cutie lives in ./drivers/ufs/core and got stamped October 2026 β mwah, love that for us ππ§ββοΈ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms