€•i,Œsphinx.addnodes”Œdocument”“”)”}”(Œ rawsource”Œ”Œchildren”]”(Œ translations”Œ LanguagesNode”“”)”}”(hhh]”(hŒ pending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ refdomain”Œstd”Œreftype”Œdoc”Œ reftarget”Œ//translations/zh_CN/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/zh_TW/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/it_IT/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/ja_JP/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/ko_KR/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/pt_BR/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ//translations/sp_SP/hwmon/arctic_fan_controller”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ)SPDX-License-Identifier: GPL-2.0-or-later”h]”hŒ)SPDX-License-Identifier: GPL-2.0-or-later”…””}”hh·sbah}”(h]”h ]”h"]”h$]”h&]”Œ xml:space”Œpreserve”uh1hµhhh²hh³ŒI/var/lib/git/docbuild/linux/Documentation/hwmon/arctic_fan_controller.rst”h´KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒ#Kernel driver arctic_fan_controller”h]”hŒ#Kernel driver arctic_fan_controller”…””}”(hhÏh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhhÊh²hh³hÇh´KubhŒ paragraph”“”)”}”(hŒSupported devices:”h]”hŒSupported devices:”…””}”(hhßh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhŒ bullet_list”“”)”}”(hhh]”hŒ list_item”“”)”}”(hŒ8ARCTIC Fan Controller (USB HID, VID 0x3904, PID 0xF001) ”h]”hÞ)”}”(hŒ7ARCTIC Fan Controller (USB HID, VID 0x3904, PID 0xF001)”h]”hŒ7ARCTIC Fan Controller (USB HID, VID 0x3904, PID 0xF001)”…””}”(hhøh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khhôubah}”(h]”h ]”h"]”h$]”h&]”uh1hòhhïh²hh³hÇh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1híh³hÇh´KhhÊh²hubhÞ)”}”(hŒ8Author: Aureo Serrano de Souza ”h]”(hŒ Author: Aureo Serrano de Souza <”…””}”(hjh²hh³Nh´NubhŒ reference”“”)”}”(hŒaureo.serrano@arctic.de”h]”hŒaureo.serrano@arctic.de”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:aureo.serrano@arctic.de”uh1jhjubhŒ>”…””}”(hjh²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K hhÊh²hubhÉ)”}”(hhh]”(hÎ)”}”(hŒ Description”h]”hŒ Description”…””}”(hj;h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj8h²hh³hÇh´K ubhÞ)”}”(hX|This driver provides hwmon support for the ARCTIC Fan Controller, a USB Custom HID device with 10 fan channels. The device sends IN reports about once per second containing current RPM values (bytes 11-30, 10 x uint16 LE). Fan speed control is manual-only: the device does not change PWM autonomously; it only applies a new duty cycle when it receives an OUT report from the host.”h]”hX|This driver provides hwmon support for the ARCTIC Fan Controller, a USB Custom HID device with 10 fan channels. The device sends IN reports about once per second containing current RPM values (bytes 11-30, 10 x uint16 LE). Fan speed control is manual-only: the device does not change PWM autonomously; it only applies a new duty cycle when it receives an OUT report from the host.”…””}”(hjIh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj8h²hubhÞ)”}”(hŒ›After the device applies an OUT report, it sends back a 2-byte ACK IN report (Report ID 0x02, byte 1 = 0x00 on success) confirming the command was applied.”h]”hŒ›After the device applies an OUT report, it sends back a 2-byte ACK IN report (Report ID 0x02, byte 1 = 0x00 on success) confirming the command was applied.”…””}”(hjWh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khj8h²hubeh}”(h]”Œ description”ah ]”h"]”Œ description”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´K ubhÉ)”}”(hhh]”(hÎ)”}”(hŒ Usage notes”h]”hŒ Usage notes”…””}”(hjph²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhjmh²hh³hÇh´KubhÞ)”}”(hŒKSince it is a USB device, hotplug is supported. The device is autodetected.”h]”hŒKSince it is a USB device, hotplug is supported. The device is autodetected.”…””}”(hj~h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khjmh²hubhÞ)”}”(hXÈThe device does not support GET_REPORT, so the driver cannot read back the current hardware PWM state at probe time. The cached PWM values (readable via pwm[1-10]) start at 0 and reflect only values that have been successfully written. Because each OUT report carries all 10 channel values, writing a single channel also sends the cached values for all other channels. Users should set all channels to the desired values before relying on the cached state.”h]”hXÈThe device does not support GET_REPORT, so the driver cannot read back the current hardware PWM state at probe time. The cached PWM values (readable via pwm[1-10]) start at 0 and reflect only values that have been successfully written. Because each OUT report carries all 10 channel values, writing a single channel also sends the cached values for all other channels. Users should set all channels to the desired values before relying on the cached state.”…””}”(hjŒh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´Khjmh²hubhÞ)”}”(hX6On system suspend, the device may lose power and reset its PWM channels to hardware defaults. The driver clears its cached duty values on resume so that reads reflect the unknown hardware state rather than stale pre-suspend values. Userspace is responsible for re-applying the desired duty cycles after resume.”h]”hX6On system suspend, the device may lose power and reset its PWM channels to hardware defaults. The driver clears its cached duty values on resume so that reads reflect the unknown hardware state rather than stale pre-suspend values. Userspace is responsible for re-applying the desired duty cycles after resume.”…””}”(hjšh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K'hjmh²hubeh}”(h]”Œ usage-notes”ah ]”h"]”Œ usage notes”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KubhÉ)”}”(hhh]”(hÎ)”}”(hŒ Sysfs entries”h]”hŒ Sysfs entries”…””}”(hj³h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj°h²hh³hÇh´K.ubhŒtable”“”)”}”(hhh]”hŒtgroup”“”)”}”(hhh]”(hŒcolspec”“”)”}”(hhh]”h}”(h]”h ]”h"]”h$]”h&]”Œcolwidth”Kuh1jËhjÈubjÌ)”}”(hhh]”h}”(h]”h ]”h"]”h$]”h&]”Œcolwidth”K?uh1jËhjÈubhŒtbody”“”)”}”(hhh]”(hŒrow”“”)”}”(hhh]”(hŒentry”“”)”}”(hhh]”hÞ)”}”(hŒfan[1-10]_input”h]”hŒfan[1-10]_input”…””}”(hjðh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K1hjíubah}”(h]”h ]”h"]”h$]”h&]”uh1jëhjèubjì)”}”(hhh]”hÞ)”}”(hŒ?Fan speed in RPM (read-only). Updated from IN reports at ~1 Hz.”h]”hŒ?Fan speed in RPM (read-only). Updated from IN reports at ~1 Hz.”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K1hjubah}”(h]”h ]”h"]”h$]”h&]”uh1jëhjèubeh}”(h]”h ]”h"]”h$]”h&]”uh1jæhjãubjç)”}”(hhh]”(jì)”}”(hhh]”hÞ)”}”(hŒ pwm[1-10]”h]”hŒ pwm[1-10]”…””}”(hj'h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K2hj$ubah}”(h]”h ]”h"]”h$]”h&]”uh1jëhj!ubjì)”}”(hhh]”hÞ)”}”(hXOPWM duty cycle (0-255). Write: sends an OUT report setting the duty cycle (scaled from 0-255 to 0-100% for the device); the cached value is updated only after the device ACKs the command with a success status. Read: returns the last successfully written value; initialized to 0 at driver load and after resume (hardware state unknown).”h]”hXOPWM duty cycle (0-255). Write: sends an OUT report setting the duty cycle (scaled from 0-255 to 0-100% for the device); the cached value is updated only after the device ACKs the command with a success status. Read: returns the last successfully written value; initialized to 0 at driver load and after resume (hardware state unknown).”…””}”(hj>h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K2hj;ubah}”(h]”h ]”h"]”h$]”h&]”uh1jëhj!ubeh}”(h]”h ]”h"]”h$]”h&]”uh1jæhjãubeh}”(h]”h ]”h"]”h$]”h&]”uh1jáhjÈubeh}”(h]”h ]”h"]”h$]”h&]”Œcols”Kuh1jÆhjÃubah}”(h]”h ]”h"]”h$]”h&]”uh1jÁhj°h²hh³hÇh´Nubeh}”(h]”Œ sysfs-entries”ah ]”h"]”Œ sysfs entries”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´K.ubeh}”(h]”Œ#kernel-driver-arctic-fan-controller”ah ]”h"]”Œ#kernel driver arctic_fan_controller”ah$]”h&]”uh1hÈhhh²hh³hÇh´Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”hÇuh1hŒcurrent_source”NŒ current_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(hÍNŒ generator”NŒ datestamp”NŒ source_link”NŒ source_url”NŒ toc_backlinks”jëŒfootnote_backlinks”KŒ sectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒ strip_classes”NŒ report_level”KŒ halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ traceback”ˆŒinput_encoding”Œ utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”jŒerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œ language_code”Œen”Œrecord_dependencies”NŒconfig”NŒ id_prefix”hŒauto_id_prefix”Œid”Œ dump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”hÇŒ _destination”NŒ _config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒ raw_enabled”KŒline_length_limit”M'Œpep_references”NŒ pep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒ rfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œ smart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œ docinfo_xform”KŒsectsubtitle_xform”‰Œ image_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jxjujjjgj­jªjpjmuŒ nametypes”}”(jx‰jj‰j­‰jp‰uh}”(juhÊjgj8jªjmjmj°uŒ footnote_refs”}”Œ citation_refs”}”Œ autofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ footnotes”]”Œ citations”]”Œautofootnote_start”KŒsymbol_footnote_start”KŒ id_counter”Œ collections”ŒCounter”“”}”…”R”Œparse_messages”]”Œtransform_messages”]”Œ transformer”NŒ include_log”]”Œ decoration”Nh²hub.