€•ß0Œsphinx.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/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/zh_TW/hwmon/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/it_IT/hwmon/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ja_JP/hwmon/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/ko_KR/hwmon/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ!/translations/sp_SP/hwmon/adt7462”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒKernel driver adt7462”h]”hŒKernel driver adt7462”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒ;/var/lib/git/docbuild/linux/Documentation/hwmon/adt7462.rst”h KubhŒ paragraph”“”)”}”(hŒSupported chips:”h]”hŒSupported chips:”…””}”(hh¹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubhŒ block_quote”“”)”}”(hŒ’* Analog Devices ADT7462 Prefix: 'adt7462' Addresses scanned: I2C 0x58, 0x5C Datasheet: Publicly available at the Analog Devices website ”h]”hŒ bullet_list”“”)”}”(hhh]”hŒ list_item”“”)”}”(hŒŠAnalog Devices ADT7462 Prefix: 'adt7462' Addresses scanned: I2C 0x58, 0x5C Datasheet: Publicly available at the Analog Devices website ”h]”(h¸)”}”(hŒAnalog Devices ADT7462”h]”hŒAnalog Devices ADT7462”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒPrefix: 'adt7462'”h]”hŒPrefix: ‘adt7462’”…””}”(hhæhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubh¸)”}”(hŒ!Addresses scanned: I2C 0x58, 0x5C”h]”hŒ!Addresses scanned: I2C 0x58, 0x5C”…””}”(hhôhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhÔubh¸)”}”(hŒ;Datasheet: Publicly available at the Analog Devices website”h]”hŒ;Datasheet: Publicly available at the Analog Devices website”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”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$]”h&]”uh1hÇhŸh¶h Khh£hžhubh¸)”}”(hŒAuthor: Darrick J. Wong”h]”hŒAuthor: Darrick J. Wong”…””}”(hj$hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubh¢)”}”(hhh]”(h§)”}”(hŒ Description”h]”hŒ Description”…””}”(hj5hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hj2hžhhŸh¶h Kubh¸)”}”(hŒJThis driver implements support for the Analog Devices ADT7462 chip family.”h]”hŒJThis driver implements support for the Analog Devices ADT7462 chip family.”…””}”(hjChžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj2hžhubh¸)”}”(hXRThis chip is a bit of a beast. It has 8 counters for measuring fan speed. It can also measure 13 voltages or 4 temperatures, or various combinations of the two. See the chip documentation for more details about the exact set of configurations. This driver does not allow one to configure the chip; that is left to the system designer.”h]”hXRThis chip is a bit of a beast. It has 8 counters for measuring fan speed. It can also measure 13 voltages or 4 temperatures, or various combinations of the two. See the chip documentation for more details about the exact set of configurations. This driver does not allow one to configure the chip; that is left to the system designer.”…””}”(hjQhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj2hžhubh¸)”}”(hX·A sophisticated control system for the PWM outputs is designed into the ADT7462 that allows fan speed to be adjusted automatically based on any of the three temperature sensors. Each PWM output is individually adjustable and programmable. Once configured, the ADT7462 will adjust the PWM outputs in response to the measured temperatures without further host intervention. This feature can also be disabled for manual control of the PWM's.”h]”hX¹A sophisticated control system for the PWM outputs is designed into the ADT7462 that allows fan speed to be adjusted automatically based on any of the three temperature sensors. Each PWM output is individually adjustable and programmable. Once configured, the ADT7462 will adjust the PWM outputs in response to the measured temperatures without further host intervention. This feature can also be disabled for manual control of the PWM’s.”…””}”(hj_hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khj2hžhubh¸)”}”(hŒ³Each of the measured inputs (voltage, temperature, fan speed) has corresponding high/low limit values. The ADT7462 will signal an ALARM if any measured value exceeds either limit.”h]”hŒ³Each of the measured inputs (voltage, temperature, fan speed) has corresponding high/low limit values. The ADT7462 will signal an ALARM if any measured value exceeds either limit.”…””}”(hjmhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K"hj2hžhubh¸)”}”(hŒ¶The ADT7462 samples all inputs continuously. The driver will not read the registers more often than once every other second. Further, configuration data is only read once per minute.”h]”hŒ¶The ADT7462 samples all inputs continuously. The driver will not read the registers more often than once every other second. Further, configuration data is only read once per minute.”…””}”(hj{hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K&hj2hžhubeh}”(h]”Œ description”ah ]”h"]”Œ description”ah$]”h&]”uh1h¡hh£hžhhŸh¶h Kubh¢)”}”(hhh]”(h§)”}”(hŒSpecial Features”h]”hŒSpecial Features”…””}”(hj”hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hj‘hžhhŸh¶h K+ubh¸)”}”(hŒ_The ADT7462 have a 10-bit ADC and can therefore measure temperatures with 0.25 degC resolution.”h]”hŒ_The ADT7462 have a 10-bit ADC and can therefore measure temperatures with 0.25 degC resolution.”…””}”(hj¢hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K-hj‘hžhubh¸)”}”(hŒThe Analog Devices datasheet is very detailed and describes a procedure for determining an optimal configuration for the automatic PWM control.”h]”hŒThe Analog Devices datasheet is very detailed and describes a procedure for determining an optimal configuration for the automatic PWM control.”…””}”(hj°hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K0hj‘hžhubh¸)”}”(hŒtThe driver will report sensor labels when it is able to determine that information from the configuration registers.”h]”hŒtThe driver will report sensor labels when it is able to determine that information from the configuration registers.”…””}”(hj¾hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K3hj‘hžhubeh}”(h]”Œspecial-features”ah ]”h"]”Œspecial features”ah$]”h&]”uh1h¡hh£hžhhŸh¶h K+ubh¢)”}”(hhh]”(h§)”}”(hŒConfiguration Notes”h]”hŒConfiguration Notes”…””}”(hj×hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjÔhžhhŸh¶h K7ubh¸)”}”(hŒ6Besides standard interfaces driver adds the following:”h]”hŒ6Besides standard interfaces driver adds the following:”…””}”(hjåhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K9hjÔhžhubhÎ)”}”(hhh]”(hÓ)”}”(hŒ PWM Control ”h]”h¸)”}”(hŒ PWM Control”h]”hŒ PWM Control”…””}”(hjúhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K;hjöubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjóhžhhŸh¶h NubhÓ)”}”(hŒ3pwm#_auto_point1_pwm and temp#_auto_point1_temp and”h]”h¸)”}”(hjh]”hŒ3pwm#_auto_point1_pwm and temp#_auto_point1_temp and”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K=hjubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjóhžhhŸh¶h NubhÓ)”}”(hŒ¨pwm#_auto_point2_pwm and temp#_auto_point2_temp - - point1: Set the pwm speed at a lower temperature bound. - point2: Set the pwm speed at a higher temperature bound. ”h]”(h¸)”}”(hŒ1pwm#_auto_point2_pwm and temp#_auto_point2_temp -”h]”hŒ1pwm#_auto_point2_pwm and temp#_auto_point2_temp -”…””}”(hj)hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K>hj%ubhÎ)”}”(hhh]”(hÓ)”}”(hŒ7point1: Set the pwm speed at a lower temperature bound.”h]”h¸)”}”(hj<h]”hŒ7point1: Set the pwm speed at a lower temperature bound.”…””}”(hj>hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K@hj:ubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj7ubhÓ)”}”(hŒ9point2: Set the pwm speed at a higher temperature bound. ”h]”h¸)”}”(hŒ8point2: Set the pwm speed at a higher temperature bound.”h]”hŒ8point2: Set the pwm speed at a higher temperature bound.”…””}”(hjUhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KAhjQubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhj7ubeh}”(h]”h ]”h"]”h$]”h&]”jŒ-”uh1hÍhŸh¶h K@hj%ubeh}”(h]”h ]”h"]”h$]”h&]”uh1hÒhjóhžhhŸNh Nubeh}”(h]”h ]”h"]”h$]”h&]”jjuh1hÍhŸh¶h K;hjÔhžhubh¸)”}”(hX*The ADT7462 will scale the pwm between the lower and higher pwm speed when the temperature is between the two temperature boundaries. PWM values range from 0 (off) to 255 (full speed). Fan speed will be set to maximum when the temperature sensor associated with the PWM control exceeds temp#_max.”h]”hX*The ADT7462 will scale the pwm between the lower and higher pwm speed when the temperature is between the two temperature boundaries. PWM values range from 0 (off) to 255 (full speed). 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