fwfault_count_show(9)

✨ fwfault_count_show(9) ✨

okay bestie, you're looking at a page from the Kernel API Manual, and this one is all about a tiny SysFS callback that tells you how many firmware faults have stacked up. no cap, let's get into it 💖

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🌸 NAME 🌸

• fwfault_count_show — a SysFS callback to show the firmware fault count 👑

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✨ SYNOPSIS ✨

here's the signature, character for character:

ssize_t fwfault_count_show (struct device *dev , struct device_attribute
       *attr , char *buf );

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🎀 ARGUMENTS 🎀

• dev — the class device 💅
• attr — the Device attribute 🫶
• buf — the Buffer to copy data into 🌸

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💅 DESCRIPTION 💅

this function displays the total number of firmware faults detected by the driver since the controller was initialized. that's the whole vibe check — it's giving "fault counter, but make it SysFS" ✨

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🔥 RETURN 🔥

it returns the number of bytes written to buf. periodt 💖

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🦋 SEE ALSO 🦋

the kernel file:

• ./drivers/scsi/mpi3mr/mpi3mr_app.c

and these function pages, all together in their iconic little lineup:

• mpi3mr_alloc_trace_buffer(9)
• mpi3mr_alloc_diag_bufs(9)
• mpi3mr_issue_diag_buf_post(9)
• mpi3mr_post_diag_bufs(9)
• mpi3mr_issue_diag_buf_release(9)
• mpi3mr_process_trigger(9)
• mpi3mr_global_trigger(9)
• mpi3mr_scsisense_trigger(9)
• mpi3mr_event_trigger(9)
• mpi3mr_reply_trigger(9)
• mpi3mr_get_num_trigger(9)
• mpi3mr_refresh_trigger(9)
• mpi3mr_release_diag_bufs(9)
• mpi3mr_set_trigger_data_in_hdb(9)
• mpi3mr_set_trigger_data_in_all_hdb(9)
• mpi3mr_hdbstatuschg_evt_th(9)
• mpi3mr_diag_buffer_for_type(9)
• mpi3mr_bsg_pel_abort(9)
• mpi3mr_bsg_verify_adapter(9)
• mpi3mr_bsg_refresh_hdb_triggers(9)
• mpi3mr_bsg_upload_hdb(9)
• mpi3mr_bsg_repost_hdb(9)
• mpi3mr_bsg_query_hdb(9)
• mpi3mr_enable_logdata(9)
• mpi3mr_get_logdata(9)
• mpi3mr_bsg_pel_enable(9)
• mpi3mr_get_all_tgt_info(9)
• mpi3mr_get_change_count(9)
• mpi3mr_bsg_adp_reset(9)
• mpi3mr_bsg_populate_adpinfo(9)
• mpi3mr_bsg_process_drv_cmds(9)
• mpi3mr_total_num_ioctl_sges(9)
• mpi3mr_bsg_build_sgl(9)
• mpi3mr_get_nvme_data_fmt(9)
• mpi3mr_build_nvme_sgl(9)
• mpi3mr_build_nvme_prp(9)
• mpi3mr_map_data_buffer_dma(9)
• mpi3mr_bsg_process_mpt_cmds(9)
• mpi3mr_app_save_logdata_th(9)
• mpi3mr_bsg_request(9)
• mpi3mr_bsg_exit(9)
• mpi3mr_bsg_node_release(9)
• mpi3mr_bsg_init(9)
• version_fw_show(9)
• fw_queue_depth_show(9)
• op_req_q_count_show(9)
• reply_queue_count_show(9)
• reply_qfull_count_show(9)
• logging_level_show(9)
• logging_level_store(9)
• adp_state_show(9)
• sas_address_show(9)
• device_handle_show(9)
• persistent_id_show(9)
• sas_ncq_prio_supported_show(9)
• sas_ncq_prio_enable_show(9)

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with love from ./drivers/scsi/mpi3mr, dated October 2026 💅🫶✨