€•0CŒsphinx.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/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ/translations/zh_TW/hwmon/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ/translations/it_IT/hwmon/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ/translations/ja_JP/hwmon/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ/translations/ko_KR/hwmon/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ/translations/sp_SP/hwmon/lm87”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒKernel driver lm87”h]”hŒKernel driver lm87”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒ8/var/lib/git/docbuild/linux/Documentation/hwmon/lm87.rst”h KubhŒ paragraph”“”)”}”(hŒSupported chips:”h]”hŒSupported chips:”…””}”(hh¹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubhŒ block_quote”“”)”}”(hX&* National Semiconductor LM87 Prefix: 'lm87' Addresses scanned: I2C 0x2c - 0x2e Datasheet: http://www.national.com/pf/LM/LM87.html * Analog Devices ADM1024 Prefix: 'adm1024' Addresses scanned: I2C 0x2c - 0x2e Datasheet: https://www.analog.com/en/prod/0,2877,ADM1024,00.html ”h]”hŒ bullet_list”“”)”}”(hhh]”(hŒ list_item”“”)”}”(hŒ„National Semiconductor LM87 Prefix: 'lm87' Addresses scanned: I2C 0x2c - 0x2e Datasheet: http://www.national.com/pf/LM/LM87.html ”h]”(h¸)”}”(hŒNational Semiconductor LM87”h]”hŒNational Semiconductor LM87”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒPrefix: 'lm87'”h]”hŒPrefix: ‘lm87’”…””}”(hhæhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒ"Addresses scanned: I2C 0x2c - 0x2e”h]”hŒ"Addresses scanned: I2C 0x2c - 0x2e”…””}”(hhôhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhÔubh¸)”}”(hŒ2Datasheet: http://www.national.com/pf/LM/LM87.html”h]”(hŒ Datasheet: ”…””}”(hjhžhhŸNh NubhŒ reference”“”)”}”(hŒ'http://www.national.com/pf/LM/LM87.html”h]”hŒ'http://www.national.com/pf/LM/LM87.html”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”juh1j hjubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhÔubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubhÓ)”}”(hŒ‘Analog Devices ADM1024 Prefix: 'adm1024' Addresses scanned: I2C 0x2c - 0x2e Datasheet: https://www.analog.com/en/prod/0,2877,ADM1024,00.html ”h]”(h¸)”}”(hŒAnalog Devices ADM1024”h]”hŒAnalog Devices ADM1024”…””}”(hj+hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj'ubh¸)”}”(hŒPrefix: 'adm1024'”h]”hŒPrefix: ‘adm1024’”…””}”(hj9hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj'ubh¸)”}”(hŒ"Addresses scanned: I2C 0x2c - 0x2e”h]”hŒ"Addresses scanned: I2C 0x2c - 0x2e”…””}”(hjGhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj'ubh¸)”}”(hŒ@Datasheet: https://www.analog.com/en/prod/0,2877,ADM1024,00.html”h]”(hŒ Datasheet: ”…””}”(hjUhžhhŸNh Nubj )”}”(hŒ5https://www.analog.com/en/prod/0,2877,ADM1024,00.html”h]”hŒ5https://www.analog.com/en/prod/0,2877,ADM1024,00.html”…””}”(hj]hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”j_uh1j hjUubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj'ubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ*”uh1hÍhŸh¶h KhhÉubah}”(h]”h ]”h"]”h$]”h&]”uh1hÇhŸh¶h Khh£hžhubhŒdefinition_list”“”)”}”(hhh]”hŒdefinition_list_item”“”)”}”(hXAuthors: - Frodo Looijaard , - Philip Edelbrock , - Mark Studebaker , - Stephen Rousset , - Dan Eaton , - Jean Delvare , - Original 2.6 port Jeff Oliver ”h]”(hŒterm”“”)”}”(hŒAuthors:”h]”hŒAuthors:”…””}”(hj“hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1j‘hŸh¶h KhjubhŒ definition”“”)”}”(hhh]”hÎ)”}”(hhh]”(hÓ)”}”(hŒ Frodo Looijaard ,”h]”h¸)”}”(hj«h]”(hŒFrodo Looijaard <”…””}”(hj­hžhhŸNh Nubj )”}”(hŒ frodol@dds.nl”h]”hŒ frodol@dds.nl”…””}”(hj´hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:frodol@dds.nl”uh1j hj­ubhŒ>,”…””}”(hj­hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj©ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒ&Philip Edelbrock ,”h]”h¸)”}”(hjÖh]”(hŒPhilip Edelbrock <”…””}”(hjØhžhhŸNh Nubj )”}”(hŒphil@netroedge.com”h]”hŒphil@netroedge.com”…””}”(hjßhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:phil@netroedge.com”uh1j hjØubhŒ>,”…””}”(hjØhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhjÔubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒ&Mark Studebaker ,”h]”h¸)”}”(hjh]”(hŒMark Studebaker <”…””}”(hjhžhhŸNh Nubj )”}”(hŒmdsxyz123@yahoo.com”h]”hŒmdsxyz123@yahoo.com”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:mdsxyz123@yahoo.com”uh1j hjubhŒ>,”…””}”(hjhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khjÿubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒ2Stephen Rousset ,”h]”h¸)”}”(hj,h]”(hŒStephen Rousset <”…””}”(hj.hžhhŸNh Nubj )”}”(hŒstephen.rousset@rocketlogix.com”h]”hŒstephen.rousset@rocketlogix.com”…””}”(hj5hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œ&mailto:stephen.rousset@rocketlogix.com”uh1j hj.ubhŒ>,”…””}”(hj.hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj*ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒ&Dan Eaton ,”h]”h¸)”}”(hjWh]”(hŒ Dan Eaton <”…””}”(hjYhžhhŸNh Nubj )”}”(hŒdan.eaton@rocketlogix.com”h]”hŒdan.eaton@rocketlogix.com”…””}”(hj`hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œ mailto:dan.eaton@rocketlogix.com”uh1j hjYubhŒ>,”…””}”(hjYhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhjUubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒ Jean Delvare ,”h]”h¸)”}”(hj‚h]”(hŒJean Delvare <”…””}”(hj„hžhhŸNh Nubj )”}”(hŒjdelvare@suse.de”h]”hŒjdelvare@suse.de”…””}”(hj‹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:jdelvare@suse.de”uh1j hj„ubhŒ>,”…””}”(hj„hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj€ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubhÓ)”}”(hŒOriginal 2.6 port Jeff Oliver ”h]”h¸)”}”(hŒOriginal 2.6 port Jeff Oliver”h]”hŒOriginal 2.6 port Jeff Oliver”…””}”(hj¯hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj«ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj¦ubeh}”(h]”h ]”h"]”h$]”h&]”j~Œ-”uh1hÍhŸh¶h Khj£ubah}”(h]”h ]”h"]”h$]”h&]”uh1j¡hjubeh}”(h]”h ]”h"]”h$]”h&]”uh1j‹hŸh¶h Khjˆubah}”(h]”h ]”h"]”h$]”h&]”uh1j†hh£hžhhŸNh Nubh¢)”}”(hhh]”(h§)”}”(hŒ Description”h]”hŒ Description”…””}”(hjßhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjÜhžhhŸh¶h K!ubh¸)”}”(hŒbThis driver implements support for the National Semiconductor LM87 and the Analog Devices ADM1024.”h]”hŒbThis driver implements support for the National Semiconductor LM87 and the Analog Devices ADM1024.”…””}”(hjíhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K#hjÜhžhubh¸)”}”(hŒ¾The LM87 implements up to three temperature sensors, up to two fan rotation speed sensors, up to seven voltage sensors, alarms, and some miscellaneous stuff. The ADM1024 is fully compatible.”h]”hŒ¾The LM87 implements up to three temperature sensors, up to two fan rotation speed sensors, up to seven voltage sensors, alarms, and some miscellaneous stuff. The ADM1024 is fully compatible.”…””}”(hjûhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K&hjÜhžhubh¸)”}”(hŒßTemperatures are measured in degrees Celsius. Each input has a high and low alarm settings. A high limit produces an alarm when the value goes above it, and an alarm is also produced when the value goes below the low limit.”h]”hŒßTemperatures are measured in degrees Celsius. Each input has a high and low alarm settings. A high limit produces an alarm when the value goes above it, and an alarm is also produced when the value goes below the low limit.”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K*hjÜhžhubh¸)”}”(hX™Fan rotation speeds are reported in RPM (rotations per minute). An alarm is triggered if the rotation speed has dropped below a programmable limit. Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give the readings more range or accuracy. Not all RPM values can accurately be represented, so some rounding is done. With a divider of 2, the lowest representable value is around 2600 RPM.”h]”hX™Fan rotation speeds are reported in RPM (rotations per minute). An alarm is triggered if the rotation speed has dropped below a programmable limit. Fan readings can be divided by a programmable divider (1, 2, 4 or 8) to give the readings more range or accuracy. Not all RPM values can accurately be represented, so some rounding is done. With a divider of 2, the lowest representable value is around 2600 RPM.”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K/hjÜhžhubh¸)”}”(hXVoltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. Note that minimum in this case always means 'closest to zero'; this is important for negative voltage measurements.”h]”hXVoltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. Note that minimum in this case always means ‘closest to zero’; this is important for negative voltage measurements.”…””}”(hj%hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K6hjÜhžhubh¸)”}”(hX|If an alarm triggers, it will remain triggered until the hardware register is read at least once. This means that the cause for the alarm may already have disappeared! Note that in the current implementation, all hardware registers are read whenever any data is read (unless it is less than 1.0 seconds since the last update). This means that you can easily miss once-only alarms.”h]”hX|If an alarm triggers, it will remain triggered until the hardware register is read at least once. This means that the cause for the alarm may already have disappeared! Note that in the current implementation, all hardware registers are read whenever any data is read (unless it is less than 1.0 seconds since the last update). This means that you can easily miss once-only alarms.”…””}”(hj3hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K;hjÜhžhubh¸)”}”(hŒ~The lm87 driver only updates its values each 1.0 seconds; reading it more often will do no harm, but will return 'old' values.”h]”hŒ‚The lm87 driver only updates its values each 1.0 seconds; reading it more often will do no harm, but will return ‘old’ values.”…””}”(hjAhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KBhjÜhžhubeh}”(h]”Œ description”ah ]”h"]”Œ description”ah$]”h&]”uh1h¡hh£hžhhŸh¶h K!ubh¢)”}”(hhh]”(h§)”}”(hŒHardware Configurations”h]”hŒHardware Configurations”…””}”(hjZhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjWhžhhŸh¶h KGubh¸)”}”(hŒnThe LM87 has four pins which can serve one of two possible functions, depending on the hardware configuration.”h]”hŒnThe LM87 has four pins which can serve one of two possible functions, depending on the hardware configuration.”…””}”(hjhhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KIhjWhžhubh¸)”}”(hXRSome functions share pins, so not all functions are available at the same time. 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