version_nvda...sistent_show(9)

✨ version_nvda...sistent_show(9) ✨

okay so we're deep in the Kernel API Manual bestie, and this one is a sysfs show function — the little read-only callback situation that hands you a string. if you live in mpt3sas land this is your girl 💅

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🌸 NAME 🌸

version_nvdata_persistent_show — ndvata persistent version 🎀

(yes, ndvata. that's how it's spelled here. we don't fix the kernel's typos, we respect them 😌)

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🦋 SYNOPSIS 🦋

ssize_t version_nvdata_persistent_show (struct device *cdev , struct
device_attribute *attr , char *buf );

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💖 ARGUMENTS 💖

• cdev — pointer to embedded class device. it's the device saying "hi it's me" 🫶
• attr — literally ?. the docs themselves are shrugging. iconic honestly 😭
• buf — the buffer returned. this is where the string goes, bestie ✨

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👑 DESCRIPTION 👑

A sysfs 'read-only' shost attribute. that's it, that's the whole vibe — it's read-only, no writing back, no store side, just show. periodt 💅

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🔥 SEE ALSO 🔥

Kernel file ./drivers/scsi/mpt3sas/mpt3sas_ctl.c

• enum block_state(9), _ctl_display_some_debug(9), mpt3sas_ctl_done(9), _ctl_check_event_type(9), mpt3sas_ctl_add_to_event_log(9), mpt3sas_ctl_event_callback(9)
• _ctl_verify_adapter(9), mpt3sas_ctl_pre_reset_handler(9), mpt3sas_ctl_clear_outstanding_ioctls(9), mpt3sas_ctl_reset_done_handler(9), _ctl_fasync(9), _ctl_poll(9)
• _ctl_set_task_mid(9), _ctl_send_mctp_passthru_req(9), _ctl_do_mpt_command(9), _ctl_getiocinfo(9), _ctl_eventquery(9), _ctl_eventenable(9)
• _ctl_eventreport(9), _ctl_do_reset(9), _ctl_btdh_search_sas_device(9), _ctl_btdh_search_pcie_device(9), _ctl_btdh_search_raid_device(9), _ctl_btdh_mapping(9)
• _ctl_diag_capability(9), _ctl_diag_get_bufftype(9), _ctl_diag_register_2(9), mpt3sas_enable_diag_buffer(9), _ctl_diag_register(9), _ctl_diag_unregister(9)
• _ctl_diag_query(9), mpt3sas_send_diag_release(9), _ctl_diag_release(9), _ctl_diag_read_buffer(9), _ctl_addnl_diag_query(9), _ctl_enable_diag_sbr_reload(9)
• _ctl_compat_mpt_command(9), _ctl_ioctl_main(9), _ctl_get_mpt_mctp_passthru_adapter(9), mpt3sas_get_device_count(9), _ctl_ioctl(9), _ctl_mpt2_ioctl(9)
• _ctl_ioctl_compat(9), _ctl_mpt2_ioctl_compat(9), version_fw_show(9), version_bios_show(9), version_mpi_show(9), version_product_show(9)
• version_nvdata_default_show(9), board_name_show(9), board_assembly_show(9), board_tracer_show(9), io_delay_show(9), device_delay_show(9)
• fw_queue_depth_show(9), host_sas_address_show(9), logging_level_show(9), fwfault_debug_show(9), ioc_reset_count_show(9), reply_queue_count_show(9)
• BRM_status_show(9), host_trace_buffer_size_show(9), host_trace_buffer_show(9), host_trace_buffer_enable_show(9), diag_trigger_master_show(9), diag_trigger_master_store(9)
• diag_trigger_event_show(9), diag_trigger_event_store(9), diag_trigger_scsi_show(9), diag_trigger_scsi_store(9), diag_trigger_mpi_show(9), diag_trigger_mpi_store(9)
• drv_support_bitmap_show(9), enable_sdev_max_qd_show(9), enable_sdev_max_qd_store(9), sas_address_show(9), sas_device_handle_show(9), sas_ncq_prio_supported_show(9)
• sas_ncq_prio_enable_show(9), mpt3sas_ctl_init(9), mpt3sas_ctl_release(9), mpt3sas_ctl_exit(9)

like, that's the whole friend group right there. go say hi to all of them 🫶✨

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ngl if you're reading kernel docs at 2am you're doing amazing sweetie. hydrate. 💜

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and that's the page, bestie 🌈 from ./drivers/scsi/mpt3sas, dated October 2026 — iykyk, mwah 💋🎀