€•&)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/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/zh_TW/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/it_IT/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ja_JP/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ko_KR/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/pt_BR/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/sp_SP/hwmon/pc87427”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒKernel driver pc87427”h]”hŒKernel driver pc87427”…””}”(hh¼h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhh·h²hh³Œ;/var/lib/git/docbuild/linux/Documentation/hwmon/pc87427.rst”h´KubhŒ paragraph”“”)”}”(hŒSupported chips:”h]”hŒSupported chips:”…””}”(hhÍh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khh·h²hubhŒ block_quote”“”)”}”(hŒ* National Semiconductor PC87427 Prefix: 'pc87427' Addresses scanned: none, address read from Super I/O config space Datasheet: No longer available ”h]”hŒ bullet_list”“”)”}”(hhh]”hŒ list_item”“”)”}”(hŒ•National Semiconductor PC87427 Prefix: 'pc87427' Addresses scanned: none, address read from Super I/O config space Datasheet: No longer available ”h]”(hÌ)”}”(hŒNational Semiconductor PC87427”h]”hŒNational Semiconductor PC87427”…””}”(hhìh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhhèubhÌ)”}”(hŒPrefix: 'pc87427'”h]”hŒPrefix: ‘pc87427’”…””}”(hhúh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´KhhèubhÌ)”}”(hŒAAddresses scanned: none, address read from Super I/O config space”h]”hŒAAddresses scanned: none, address read from Super I/O config space”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K hhèubhÌ)”}”(hŒDatasheet: No longer available”h]”hŒDatasheet: No longer available”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K hhèubeh}”(h]”h ]”h"]”h$]”h&]”uh1hæhhãubah}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1háh³hÊh´KhhÝubah}”(h]”h ]”h"]”h$]”h&]”uh1hÛh³hÊh´Khh·h²hubhÌ)”}”(hŒ'Author: Jean Delvare ”h]”(hŒAuthor: Jean Delvare <”…””}”(hj8h²hh³Nh´NubhŒ reference”“”)”}”(hŒjdelvare@suse.de”h]”hŒjdelvare@suse.de”…””}”(hjBh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:jdelvare@suse.de”uh1j@hj8ubhŒ>”…””}”(hj8h²hh³Nh´Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khh·h²hubhÌ)”}”(hŒƒThanks to Amir Habibi at Candelis for setting up a test system, and to Michael Kress for testing several iterations of this driver.”h]”hŒƒThanks to Amir Habibi at Candelis for setting up a test system, and to Michael Kress for testing several iterations of this driver.”…””}”(hj\h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khh·h²hubh¶)”}”(hhh]”(h»)”}”(hŒ Description”h]”hŒ Description”…””}”(hjmh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhjjh²hh³hÊh´KubhÌ)”}”(hŒîThe National Semiconductor Super I/O chip includes complete hardware monitoring capabilities. It can monitor up to 18 voltages, 8 fans and 6 temperature sensors. Only the fans and temperatures are supported at the moment, voltages aren't.”h]”hŒðThe National Semiconductor Super I/O chip includes complete hardware monitoring capabilities. It can monitor up to 18 voltages, 8 fans and 6 temperature sensors. Only the fans and temperatures are supported at the moment, voltages aren’t.”…””}”(hj{h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khjjh²hubhÌ)”}”(hŒmThis chip also has fan controlling features (up to 4 PWM outputs), which are partly supported by this driver.”h]”hŒmThis chip also has fan controlling features (up to 4 PWM outputs), which are partly supported by this driver.”…””}”(hj‰h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khjjh²hubhÌ)”}”(hŒQThe driver assumes that no more than one chip is present, which seems reasonable.”h]”hŒQThe driver assumes that no more than one chip is present, which seems reasonable.”…””}”(hj—h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´Khjjh²hubeh}”(h]”Œ description”ah ]”h"]”Œ description”ah$]”h&]”uh1hµhh·h²hh³hÊh´Kubh¶)”}”(hhh]”(h»)”}”(hŒFan Monitoring”h]”hŒFan Monitoring”…””}”(hj°h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhj­h²hh³hÊh´K$ubhÌ)”}”(hŒsFan rotation speeds are reported as 14-bit values from a gated clock signal. Speeds down to 83 RPM can be measured.”h]”hŒsFan rotation speeds are reported as 14-bit values from a gated clock signal. Speeds down to 83 RPM can be measured.”…””}”(hj¾h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K&hj­h²hubhÌ)”}”(hŒ³An alarm is triggered if the rotation speed drops below a programmable limit. Another alarm is triggered if the speed is too low to be measured (including stalled or missing fan).”h]”hŒ³An alarm is triggered if the rotation speed drops below a programmable limit. Another alarm is triggered if the speed is too low to be measured (including stalled or missing fan).”…””}”(hjÌh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K)hj­h²hubeh}”(h]”Œfan-monitoring”ah ]”h"]”Œfan monitoring”ah$]”h&]”uh1hµhh·h²hh³hÊh´K$ubh¶)”}”(hhh]”(h»)”}”(hŒFan Speed Control”h]”hŒFan Speed Control”…””}”(hjåh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhjâh²hh³hÊh´K/ubhÌ)”}”(hX Fan speed can be controlled by PWM outputs. There are 4 possible modes: always off, always on, manual and automatic. The latter isn't supported by the driver: you can only return to that mode if it was the original setting, and the configuration interface is missing.”h]”hX Fan speed can be controlled by PWM outputs. There are 4 possible modes: always off, always on, manual and automatic. The latter isn’t supported by the driver: you can only return to that mode if it was the original setting, and the configuration interface is missing.”…””}”(hjóh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hËh³hÊh´K1hjâh²hubeh}”(h]”Œfan-speed-control”ah ]”h"]”Œfan speed control”ah$]”h&]”uh1hµhh·h²hh³hÊh´K/ubh¶)”}”(hhh]”(h»)”}”(hŒTemperature Monitoring”h]”hŒTemperature Monitoring”…””}”(hj h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhj h²hh³hÊh´K8ubhÌ)”}”(hXfThe PC87427 relies on external sensors (following the SensorPath standard), so the resolution and range depend on the type of sensor connected. 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