€•:      Œsphinx.addnodes”Œdocument”“”)”}”(Œ	rawsource”Œ ”Œchildren”]”(Œtranslations”ŒLanguagesNode”“”)”}”(hhh]”(h Œpending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ
attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ	refdomain”Œstd”Œreftype”Œdoc”Œ	reftarget”Œ;/translations/zh_CN/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuŒtagname”hhhubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/zh_TW/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/it_IT/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/ja_JP/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/ko_KR/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/pt_BR/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ	refdomain”h)Œreftype”h+Œ	reftarget”Œ;/translations/sp_SP/admin-guide/acpi/fan_performance_states”Œmodname”NŒ	classname”NŒrefexplicit”ˆuh1hhhubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h
hhŒ	_document”hŒsource”NŒline”NubhŒcomment”“”)”}”(hŒ SPDX-License-Identifier: GPL-2.0”h]”hŒ SPDX-License-Identifier: GPL-2.0”…””}”hh·sbah}”(h]”h ]”h"]”h$]”h&]”Œ	xml:space”Œpreserve”uh1hµhhh²hh³ŒU/var/lib/git/docbuild/linux/Documentation/admin-guide/acpi/fan_performance_states.rst”h´KubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒACPI Fan Performance States”h]”hŒACPI Fan Performance States”…””}”(hhÏh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhhÊh²hh³hÇh´KubhŒ	paragraph”“”)”}”(hX!  When the optional _FPS object is present under an ACPI device representing a
fan (for example, PNP0C0B or INT3404), the ACPI fan driver creates additional
"state*" attributes in the sysfs directory of the ACPI device in question.
These attributes list properties of fan performance states.”h]”hX%  When the optional _FPS object is present under an ACPI device representing a
fan (for example, PNP0C0B or INT3404), the ACPI fan driver creates additional
â€œstate*â€ attributes in the sysfs directory of the ACPI device in question.
These attributes list properties of fan performance states.”…””}”(hhßh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÞ)”}”(hŒ@For more information on _FPS refer to the ACPI specification at:”h]”hŒ@For more information on _FPS refer to the ACPI specification at:”…””}”(hhíh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÞ)”}”(hŒhttp://uefi.org/specifications”h]”hŒ	reference”“”)”}”(hhýh]”hŒhttp://uefi.org/specifications”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”hýuh1hÿhhûubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhÞ)”}”(hŒ[For instance, the contents of the INT3404 ACPI device sysfs directory
may look as follows::”h]”hŒZFor instance, the contents of the INT3404 ACPI device sysfs directory
may look as follows:”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KhhÊh²hubhŒliteral_block”“”)”}”(hX«  $ ls -l /sys/bus/acpi/devices/INT3404:00/
total 0
...
-r--r--r-- 1 root root 4096 Dec 13 20:38 state0
-r--r--r-- 1 root root 4096 Dec 13 20:38 state1
-r--r--r-- 1 root root 4096 Dec 13 20:38 state10
-r--r--r-- 1 root root 4096 Dec 13 20:38 state11
-r--r--r-- 1 root root 4096 Dec 13 20:38 state2
-r--r--r-- 1 root root 4096 Dec 13 20:38 state3
-r--r--r-- 1 root root 4096 Dec 13 20:38 state4
-r--r--r-- 1 root root 4096 Dec 13 20:38 state5
-r--r--r-- 1 root root 4096 Dec 13 20:38 state6
-r--r--r-- 1 root root 4096 Dec 13 20:38 state7
-r--r--r-- 1 root root 4096 Dec 13 20:38 state8
-r--r--r-- 1 root root 4096 Dec 13 20:38 state9
-r--r--r-- 1 root root 4096 Dec 13 01:00 status
...”h]”hX«  $ ls -l /sys/bus/acpi/devices/INT3404:00/
total 0
...
-r--r--r-- 1 root root 4096 Dec 13 20:38 state0
-r--r--r-- 1 root root 4096 Dec 13 20:38 state1
-r--r--r-- 1 root root 4096 Dec 13 20:38 state10
-r--r--r-- 1 root root 4096 Dec 13 20:38 state11
-r--r--r-- 1 root root 4096 Dec 13 20:38 state2
-r--r--r-- 1 root root 4096 Dec 13 20:38 state3
-r--r--r-- 1 root root 4096 Dec 13 20:38 state4
-r--r--r-- 1 root root 4096 Dec 13 20:38 state5
-r--r--r-- 1 root root 4096 Dec 13 20:38 state6
-r--r--r-- 1 root root 4096 Dec 13 20:38 state7
-r--r--r-- 1 root root 4096 Dec 13 20:38 state8
-r--r--r-- 1 root root 4096 Dec 13 20:38 state9
-r--r--r-- 1 root root 4096 Dec 13 01:00 status
...”…””}”hj%  sbah}”(h]”h ]”h"]”h$]”h&]”hÅhÆuh1j#  h³hÇh´KhhÊh²hubhÞ)”}”(hŒ²where each of the "state*" files represents one performance state of the fan
and contains a colon-separated list of 5 integer numbers (fields) with the
following interpretation::”h]”hŒµwhere each of the â€œstate*â€ files represents one performance state of the fan
and contains a colon-separated list of 5 integer numbers (fields) with the
following interpretation:”…””}”(hj3  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K%hhÊh²hubj$  )”}”(hŒCcontrol_percent:trip_point_index:speed_rpm:noise_level_mdb:power_mw”h]”hŒCcontrol_percent:trip_point_index:speed_rpm:noise_level_mdb:power_mw”…””}”hjA  sbah}”(h]”h ]”h"]”h$]”h&]”hÅhÆuh1j#  h³hÇh´K)hhÊh²hubhŒbullet_list”“”)”}”(hhh]”(hŒ	list_item”“”)”}”(hŒz``control_percent``: The percent value to be used to set the fan speed to a
specific level using the _FSL object (0-100).
”h]”hÞ)”}”(hŒy``control_percent``: The percent value to be used to set the fan speed to a
specific level using the _FSL object (0-100).”h]”(hŒliteral”“”)”}”(hŒ``control_percent``”h]”hŒcontrol_percent”…””}”(hj`  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j^  hjZ  ubhŒf: The percent value to be used to set the fan speed to a
specific level using the _FSL object (0-100).”…””}”(hjZ  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K+hjV  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jT  hjQ  h²hh³hÇh´NubjU  )”}”(hŒm``trip_point_index``: The active cooling trip point number that corresponds
to this performance state (0-9).
”h]”hÞ)”}”(hŒl``trip_point_index``: The active cooling trip point number that corresponds
to this performance state (0-9).”h]”(j_  )”}”(hŒ``trip_point_index``”h]”hŒtrip_point_index”…””}”(hj†  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j^  hj‚  ubhŒX: The active cooling trip point number that corresponds
to this performance state (0-9).”…””}”(hj‚  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K.hj~  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jT  hjQ  h²hh³hÇh´NubjU  )”}”(hŒ9``speed_rpm``: Speed of the fan in rotations per minute.
”h]”hÞ)”}”(hŒ8``speed_rpm``: Speed of the fan in rotations per minute.”h]”(j_  )”}”(hŒ``speed_rpm``”h]”hŒ	speed_rpm”…””}”(hj¬  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j^  hj¨  ubhŒ+: Speed of the fan in rotations per minute.”…””}”(hj¨  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K1hj¤  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jT  hjQ  h²hh³hÇh´NubjU  )”}”(hŒV``noise_level_mdb``: Audible noise emitted by the fan in this state in
millidecibels.
”h]”hÞ)”}”(hŒU``noise_level_mdb``: Audible noise emitted by the fan in this state in
millidecibels.”h]”(j_  )”}”(hŒ``noise_level_mdb``”h]”hŒnoise_level_mdb”…””}”(hjÒ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j^  hjÎ  ubhŒB: Audible noise emitted by the fan in this state in
millidecibels.”…””}”(hjÎ  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K3hjÊ  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jT  hjQ  h²hh³hÇh´NubjU  )”}”(hŒA``power_mw``: Power draw of the fan in this state in milliwatts.
”h]”hÞ)”}”(hŒ@``power_mw``: Power draw of the fan in this state in milliwatts.”h]”(j_  )”}”(hŒ``power_mw``”h]”hŒpower_mw”…””}”(hjø  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j^  hjô  ubhŒ4: Power draw of the fan in this state in milliwatts.”…””}”(hjô  h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K6hjð  ubah}”(h]”h ]”h"]”h$]”h&]”uh1jT  hjQ  h²hh³hÇh´Nubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1jO  h³hÇh´K+hhÊh²hubhÞ)”}”(hŒFor example::”h]”hŒFor example:”…””}”(hj  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K8hhÊh²hubj$  )”}”(hŒA$cat /sys/bus/acpi/devices/INT3404:00/state1
25:0:3200:12500:1250”h]”hŒA$cat /sys/bus/acpi/devices/INT3404:00/state1
25:0:3200:12500:1250”…””}”hj,  sbah}”(h]”h ]”h"]”h$]”h&]”hÅhÆuh1j#  h³hÇh´K:hhÊh²hubhÞ)”}”(hŒ–When a given field is not populated or its value provided by the platform
firmware is invalid, the "not-defined" string is shown instead of the value.”h]”hŒšWhen a given field is not populated or its value provided by the platform
firmware is invalid, the â€œnot-definedâ€ string is shown instead of the value.”…””}”(hj:  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´K=hhÊh²hubhÉ)”}”(hhh]”(hÎ)”}”(hŒACPI Fan Fine Grain Control”h]”hŒACPI Fan Fine Grain Control”…””}”(hjK  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhjH  h²hh³hÇh´KAubhÞ)”}”(hŒÛWhen _FIF object specifies support for fine grain control, then fan speed
can be set from 0 to 100% with the recommended minimum "step size" via
_FSL object. User can adjust fan speed using thermal sysfs cooling device.”h]”hŒßWhen _FIF object specifies support for fine grain control, then fan speed
can be set from 0 to 100% with the recommended minimum â€œstep sizeâ€ via
_FSL object. User can adjust fan speed using thermal sysfs cooling device.”…””}”(hjY  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KChjH  h²hubhÞ)”}”(hX  Here use can look at fan performance states for a reference speed (speed_rpm)
and set it by changing cooling device cur_state. If the fine grain control
is supported then user can also adjust to some other speeds which are
not defined in the performance states.”h]”hX  Here use can look at fan performance states for a reference speed (speed_rpm)
and set it by changing cooling device cur_state. If the fine grain control
is supported then user can also adjust to some other speeds which are
not defined in the performance states.”…””}”(hjg  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KGhjH  h²hubhÞ)”}”(hŒ¦The support of fine grain control is presented via sysfs attribute
"fine_grain_control". If fine grain control is present, this attribute
will show "1" otherwise "0".”h]”hŒ²The support of fine grain control is presented via sysfs attribute
â€œfine_grain_controlâ€. If fine grain control is present, this attribute
will show â€œ1â€ otherwise â€œ0â€.”…””}”(hju  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KLhjH  h²hubhÞ)”}”(hŒNThis sysfs attribute is presented in the same directory as performance states.”h]”hŒNThis sysfs attribute is presented in the same directory as performance states.”…””}”(hjƒ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KPhjH  h²hubeh}”(h]”Œacpi-fan-fine-grain-control”ah ]”h"]”Œacpi fan fine grain control”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KAubhÉ)”}”(hhh]”(hÎ)”}”(hŒACPI Fan Performance Feedback”h]”hŒACPI Fan Performance Feedback”…””}”(hjœ  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÍhj™  h²hh³hÇh´KSubhÞ)”}”(hŒ±The optional _FST object provides status information for the fan device.
This includes field to provide current fan speed in revolutions per minute
at which the fan is rotating.”h]”hŒ±The optional _FST object provides status information for the fan device.
This includes field to provide current fan speed in revolutions per minute
at which the fan is rotating.”…””}”(hjª  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KUhj™  h²hubhÞ)”}”(hŒvThis speed is presented in the sysfs using the attribute "fan_speed_rpm",
in the same directory as performance states.”h]”hŒzThis speed is presented in the sysfs using the attribute â€œfan_speed_rpmâ€,
in the same directory as performance states.”…””}”(hj¸  h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÝh³hÇh´KYhj™  h²hubeh}”(h]”Œacpi-fan-performance-feedback”ah ]”h"]”Œacpi fan performance feedback”ah$]”h&]”uh1hÈhhÊh²hh³hÇh´KSubeh}”(h]”Œacpi-fan-performance-states”ah ]”h"]”Œacpi fan performance states”ah$]”h&]”uh1hÈhhh²hh³hÇh´Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”hÇuh1hŒcurrent_source”NŒcurrent_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(hÍNŒ	generator”NŒ	datestamp”NŒsource_link”NŒ
source_url”NŒtoc_backlinks”Œentry”Œfootnote_backlinks”KŒsectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒstrip_classes”NŒreport_level”KŒ
halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ	traceback”ˆŒinput_encoding”Œ	utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”jù  Œerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œlanguage_code”Œen”Œrecord_dependencies”NŒconfig”NŒ	id_prefix”hŒauto_id_prefix”Œid”Œdump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”hÇŒ_destination”NŒ_config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒraw_enabled”KŒline_length_limit”M'Œpep_references”NŒpep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒrfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ	tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œsmart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œdocinfo_xform”KŒsectsubtitle_xform”‰Œimage_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jÓ  jÐ  j–  j“  jË  jÈ  uŒ	nametypes”}”(jÓ  ‰j–  ‰jË  ‰uh}”(jÐ  hÊj“  jH  jÈ  j™  uŒfootnote_refs”}”Œcitation_refs”}”Œautofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ	footnotes”]”Œ	citations”]”Œautofootnote_start”KŒsymbol_footnote_start”K Œ
id_counter”Œcollections”ŒCounter”“”}”…”R”Œparse_messages”]”Œtransform_messages”]”Œtransformer”NŒinclude_log”]”Œ
decoration”Nh²hub.