€•:AŒsphinx.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/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/zh_TW/hwmon/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/it_IT/hwmon/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ja_JP/hwmon/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ko_KR/hwmon/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/sp_SP/hwmon/via686a”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒKernel driver via686a”h]”hŒKernel driver via686a”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒ;/var/lib/git/docbuild/linux/Documentation/hwmon/via686a.rst”h KubhŒ paragraph”“”)”}”(hŒSupported chips:”h]”hŒSupported chips:”…””}”(hh¹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubhŒ block_quote”“”)”}”(hŒð* Via VT82C686A, VT82C686B Southbridge Integrated Hardware Monitor Prefix: 'via686a' Addresses scanned: ISA in PCI-space encoded address Datasheet: On request through web form (http://www.via.com.tw/en/resources/download-center/) ”h]”hŒ bullet_list”“”)”}”(hhh]”hŒ list_item”“”)”}”(hŒèVia VT82C686A, VT82C686B Southbridge Integrated Hardware Monitor Prefix: 'via686a' Addresses scanned: ISA in PCI-space encoded address Datasheet: On request through web form (http://www.via.com.tw/en/resources/download-center/) ”h]”(h¸)”}”(hŒAVia VT82C686A, VT82C686B Southbridge Integrated Hardware Monitor”h]”hŒAVia VT82C686A, VT82C686B Southbridge Integrated Hardware Monitor”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒPrefix: 'via686a'”h]”hŒPrefix: ‘via686a’”…””}”(hhæhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒ3Addresses scanned: ISA in PCI-space encoded address”h]”hŒ3Addresses scanned: ISA in PCI-space encoded address”…””}”(hhôhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhÔubh¸)”}”(hŒ\Datasheet: On request through web form (http://www.via.com.tw/en/resources/download-center/)”h]”(hŒ(Datasheet: On request through web form (”…””}”(hjhžhhŸNh NubhŒ reference”“”)”}”(hŒ3http://www.via.com.tw/en/resources/download-center/”h]”hŒ3http://www.via.com.tw/en/resources/download-center/”…””}”(hj hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”juh1j hjubhŒ)”…””}”(hjhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhÔubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubah}”(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: - Kyösti Mälkki , - Mark D. Studebaker - Bob Dougherty - (Some conversion-factor data were contributed by - Jonathan Teh Soon Yew - and Alex van Kaam .) ”h]”(hŒterm”“”)”}”(hŒAuthors:”h]”hŒAuthors:”…””}”(hjFhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1jDhŸh¶h Khj@ubhŒ definition”“”)”}”(hhh]”hÎ)”}”(hhh]”(hÓ)”}”(hŒ$Kyösti Mälkki ,”h]”h¸)”}”(hj^h]”(hŒKyösti Mälkki <”…””}”(hj`hžhhŸNh Nubj )”}”(hŒkmalkki@cc.hut.fi”h]”hŒkmalkki@cc.hut.fi”…””}”(hjghžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:kmalkki@cc.hut.fi”uh1j hj`ubhŒ>,”…””}”(hj`hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj\ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubhÓ)”}”(hŒ(Mark D. Studebaker ”h]”h¸)”}”(hj‰h]”(hŒMark D. Studebaker <”…””}”(hj‹hžhhŸNh Nubj )”}”(hŒmdsxyz123@yahoo.com”h]”hŒmdsxyz123@yahoo.com”…””}”(hj’hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:mdsxyz123@yahoo.com”uh1j hj‹ubhŒ>”…””}”(hj‹hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj‡ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubhÓ)”}”(hŒ!Bob Dougherty ”h]”h¸)”}”(hj´h]”(hŒBob Dougherty <”…””}”(hj¶hžhhŸNh Nubj )”}”(hŒbobd@stanford.edu”h]”hŒbobd@stanford.edu”…””}”(hj½hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:bobd@stanford.edu”uh1j hj¶ubhŒ>”…””}”(hj¶hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj²ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubhÓ)”}”(hŒ0(Some conversion-factor data were contributed by”h]”h¸)”}”(hjßh]”hŒ0(Some conversion-factor data were contributed by”…””}”(hjáhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhjÝubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubhÓ)”}”(hŒ'Jonathan Teh Soon Yew ”h]”h¸)”}”(hjöh]”(hŒJonathan Teh Soon Yew <”…””}”(hjøhžhhŸNh Nubj )”}”(hŒj.teh@iname.com”h]”hŒj.teh@iname.com”…””}”(hjÿhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:j.teh@iname.com”uh1j hjøubhŒ>”…””}”(hjøhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khjôubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubhÓ)”}”(hŒ)and Alex van Kaam .) ”h]”h¸)”}”(hŒ(and Alex van Kaam .)”h]”(hŒand Alex van Kaam <”…””}”(hj#hžhhŸNh Nubj )”}”(hŒdarkside@chello.nl”h]”hŒdarkside@chello.nl”…””}”(hj+hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”Œmailto:darkside@chello.nl”uh1j hj#ubhŒ>.)”…””}”(hj#hžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khjubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjYubeh}”(h]”h ]”h"]”h$]”h&]”j1Œ-”uh1hÍhŸh¶h KhjVubah}”(h]”h ]”h"]”h$]”h&]”uh1jThj@ubeh}”(h]”h ]”h"]”h$]”h&]”uh1j>hŸh¶h Khj;ubah}”(h]”h ]”h"]”h$]”h&]”uh1j9hh£hžhhŸNh Nubh¢)”}”(hhh]”(h§)”}”(hŒModule Parameters”h]”hŒModule Parameters”…””}”(hjghžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjdhžhhŸh¶h KubhŒtable”“”)”}”(hhh]”hŒtgroup”“”)”}”(hhh]”(hŒcolspec”“”)”}”(hhh]”h}”(h]”h ]”h"]”h$]”h&]”Œcolwidth”Kuh1jhj|ubj€)”}”(hhh]”h}”(h]”h ]”h"]”h$]”h&]”Œcolwidth”K7uh1jhj|ubhŒtbody”“”)”}”(hhh]”hŒrow”“”)”}”(hhh]”(hŒentry”“”)”}”(hhh]”h¸)”}”(hŒforce_addr=0xaddr”h]”hŒforce_addr=0xaddr”…””}”(hj¤hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj¡ubah}”(h]”h ]”h"]”h$]”h&]”uh1jŸhjœubj )”}”(hhh]”h¸)”}”(hXESet the I/O base address. Useful for boards that don't set the address in the BIOS. Look for a BIOS upgrade before resorting to this. Does not do a PCI force; the via686a must still be present in lspci. Don't use this unless the driver complains that the base address is not set. Example: 'modprobe via686a force_addr=0x6000'”h]”hXMSet the I/O base address. Useful for boards that don’t set the address in the BIOS. Look for a BIOS upgrade before resorting to this. Does not do a PCI force; the via686a must still be present in lspci. Don’t use this unless the driver complains that the base address is not set. 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It also has an I2C bus, but this driver only supports the hardware monitor. For the I2C bus driver, see <”…””}”(hjhžhhŸNh Nubj )”}”(hŒ,file:Documentation/i2c/busses/i2c-viapro.rst”h]”hŒ,file:Documentation/i2c/busses/i2c-viapro.rst”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”Œrefuri”juh1j hjubhŒ>”…””}”(hjhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K)hjðhžhubh¸)”}”(hŒsThe Via 686a implements three temperature sensors, two fan rotation speed sensors, five voltage sensors and alarms.”h]”hŒsThe Via 686a implements three temperature sensors, two fan rotation speed sensors, five voltage sensors and alarms.”…””}”(hj0hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K-hjðhžhubh¸)”}”(hŒÂTemperatures are measured in degrees Celsius. An alarm is triggered once when the Overtemperature Shutdown limit is crossed; it is triggered again as soon as it drops below the hysteresis value.”h]”hŒÂTemperatures are measured in degrees Celsius. An alarm is triggered once when the Overtemperature Shutdown limit is crossed; it is triggered again as soon as it drops below the hysteresis value.”…””}”(hj>hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K0hjðhžhubh¸)”}”(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.”…””}”(hjLhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K4hjðhžhubh¸)”}”(hXVoltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. Voltages are internally scaled, so each voltage channel has a different resolution and range.”h]”hXVoltage sensors (also known as IN sensors) report their values in volts. An alarm is triggered if the voltage has crossed a programmable minimum or maximum limit. Voltages are internally scaled, so each voltage channel has a different resolution and range.”…””}”(hjZhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K;hjðhžhubh¸)”}”(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 1.5 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 1.5 seconds since the last update). This means that you can easily miss once-only alarms.”…””}”(hjhhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K@hjðhžhubh¸)”}”(hŒyThe driver only updates its values each 1.5 seconds; reading it more often will do no harm, but will return 'old' values.”h]”hŒ}The driver only updates its values each 1.5 seconds; reading it more often will do no harm, but will return ‘old’ values.”…””}”(hjvhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KGhjðhžhubeh}”(h]”Œ description”ah ]”h"]”Œ description”ah$]”h&]”uh1h¡hh£hžhhŸh¶h K$ubh¢)”}”(hhh]”(h§)”}”(hŒ Known Issues”h]”hŒ Known Issues”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjŒhžhhŸh¶h KKubh¸)”}”(hXThis driver handles sensors integrated in some VIA south bridges. It is possible that a motherboard maker used a VT82C686A/B chip as part of a product design but was not interested in its hardware monitoring features, in which case the sensor inputs will not be wired. This is the case of the Asus K7V, A7V and A7V133 motherboards, to name only a few of them. So, if you need the force_addr parameter, and end up with values which don't seem to make any sense, don't look any further: your chip is simply not wired for hardware monitoring.”h]”hXThis driver handles sensors integrated in some VIA south bridges. It is possible that a motherboard maker used a VT82C686A/B chip as part of a product design but was not interested in its hardware monitoring features, in which case the sensor inputs will not be wired. This is the case of the Asus K7V, A7V and A7V133 motherboards, to name only a few of them. 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