Hsphinx.addnodesdocument)}( rawsourcechildren]( translations LanguagesNode)}(hhh](h pending_xref)}(hhh]docutils.nodesTextChinese (Simplified)}parenthsba attributes}(ids]classes]names]dupnames]backrefs] refdomainstdreftypedoc reftarget"/translations/zh_CN/hwmon/max31785modnameN classnameN refexplicitutagnamehhh ubh)}(hhh]hChinese (Traditional)}hh2sbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/zh_TW/hwmon/max31785modnameN classnameN refexplicituh1hhh ubh)}(hhh]hItalian}hhFsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/it_IT/hwmon/max31785modnameN classnameN refexplicituh1hhh ubh)}(hhh]hJapanese}hhZsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/ja_JP/hwmon/max31785modnameN classnameN refexplicituh1hhh ubh)}(hhh]hKorean}hhnsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/ko_KR/hwmon/max31785modnameN classnameN refexplicituh1hhh ubh)}(hhh]hPortuguese (Brazilian)}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/pt_BR/hwmon/max31785modnameN classnameN refexplicituh1hhh ubh)}(hhh]hSpanish}hhsbah}(h]h ]h"]h$]h&] refdomainh)reftypeh+ reftarget"/translations/sp_SP/hwmon/max31785modnameN classnameN refexplicituh1hhh ubeh}(h]h ]h"]h$]h&]current_languageEnglishuh1h hh _documenthsourceNlineNubhsection)}(hhh](htitle)}(hKernel driver max31785h]hKernel driver max31785}(hhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhhhh](hAuthor: Andrew Jeffery <}(hjIhhhNhNubj)}(handrew@aj.id.auh]handrew@aj.id.au}(hjQhhhNhNubah}(h]h ]h"]h$]h&]refurimailto:andrew@aj.id.auuh1jhjIubh>}(hjIhhhNhNubeh}(h]h ]h"]h$]h&]uh1hhhhKhhhhubh)}(hhh](h)}(h Descriptionh]h Description}(hjnhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjkhhhhhKubh)}(hX"The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan management with temperature and remote voltage sensing. Various fan control features are provided, including PWM frequency control, temperature hysteresis, dual tachometer measurements, and fan health monitoring.h]hX"The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan management with temperature and remote voltage sensing. Various fan control features are provided, including PWM frequency control, temperature hysteresis, dual tachometer measurements, and fan health monitoring.}(hj|hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjkhhubh)}(hFor dual-rotor configurations the MAX31785A exposes the second rotor tachometer readings in attributes fan[5-8]_input. By contrast the MAX31785 only exposes the slowest rotor measurement, and does so in the fan[1-4]_input attributes.h]hFor dual-rotor configurations the MAX31785A exposes the second rotor tachometer readings in attributes fan[5-8]_input. By contrast the MAX31785 only exposes the slowest rotor measurement, and does so in the fan[1-4]_input attributes.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjkhhubeh}(h] descriptionah ]h"] descriptionah$]h&]uh1hhhhhhhhKubh)}(hhh](h)}(h Usage Notesh]h Usage Notes}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhhhKubh)}(h^This driver does not probe for PMBus devices. You will have to instantiate devices explicitly.h]h^This driver does not probe for PMBus devices. You will have to instantiate devices explicitly.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhKhjhhubeh}(h] usage-notesah ]h"] usage notesah$]h&]uh1hhhhhhhhKubh)}(hhh](h)}(hSysfs attributesh]hSysfs attributes}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhjhhhhhK#ubhtable)}(hhh]htgroup)}(hhh](hcolspec)}(hhh]h}(h]h ]h"]h$]h&]colwidthKuh1jhjubj)}(hhh]h}(h]h ]h"]h$]h&]colwidthK7uh1jhjubhtbody)}(hhh](hrow)}(hhh](hentry)}(hhh]h)}(hfan[1-4]_alarmh]hfan[1-4]_alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK&hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(h Fan alarm.h]h Fan alarm.}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK&hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hfan[1-4]_faulth]hfan[1-4]_fault}(hj>hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK'hj;ubah}(h]h ]h"]h$]h&]uh1jhj8ubj)}(hhh]h)}(h Fan fault.h]h Fan fault.}(hjUhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK'hjRubah}(h]h ]h"]h$]h&]uh1jhj8ubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hfan[1-8]_inputh]hfan[1-8]_input}(hjuhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK(hjrubah}(h]h ]h"]h$]h&]uh1jhjoubj)}(hhh]h)}(hPFan RPM. On the MAX31785A, inputs 5-8 correspond to the second rotor of fans 1-4h]hPFan RPM. On the MAX31785A, inputs 5-8 correspond to the second rotor of fans 1-4}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK(hjubah}(h]h ]h"]h$]h&]uh1jhjoubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hfan[1-4]_targeth]hfan[1-4]_target}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK*hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hFan input targeth]hFan input target}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK*hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_crith]h in[1-6]_crit}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK,hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hCritical maximum output voltageh]hCritical maximum output voltage}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK,hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hin[1-6]_crit_alarmh]hin[1-6]_crit_alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK-hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(h"Output voltage critical high alarmh]h"Output voltage critical high alarm}(hj1hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK-hj.ubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_inputh]h in[1-6]_input}(hjQhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK.hjNubah}(h]h ]h"]h$]h&]uh1jhjKubj)}(hhh]h)}(hMeasured output voltageh]hMeasured output voltage}(hjhhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK.hjeubah}(h]h ]h"]h$]h&]uh1jhjKubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_labelh]h in[1-6]_label}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK/hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(h "vout[18-23]"h]h“vout[18-23]”}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK/hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_lcrith]h in[1-6]_lcrit}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK0hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hCritical minimum output voltageh]hCritical minimum output voltage}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK0hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hin[1-6]_lcrit_alarmh]hin[1-6]_lcrit_alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK1hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(h!Output voltage critical low alarmh]h!Output voltage critical low alarm}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK1hj ubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_maxh]h in[1-6]_max}(hj-hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK2hj*ubah}(h]h ]h"]h$]h&]uh1jhj'ubj)}(hhh]h)}(hMaximum output voltageh]hMaximum output voltage}(hjDhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK2hjAubah}(h]h ]h"]h$]h&]uh1jhj'ubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hin[1-6]_max_alarmh]hin[1-6]_max_alarm}(hjdhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK3hjaubah}(h]h ]h"]h$]h&]uh1jhj^ubj)}(hhh]h)}(hOutput voltage high alarmh]hOutput voltage high alarm}(hj{hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK3hjxubah}(h]h ]h"]h$]h&]uh1jhj^ubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(h in[1-6]_minh]h in[1-6]_min}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK4hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hMinimum output voltageh]hMinimum output voltage}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK4hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hin[1-6]_min_alarmh]hin[1-6]_min_alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK5hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hOutput voltage low alarmh]hOutput voltage low alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK5hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hpwm[1-4]h]hpwm[1-4]}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK7hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hFan target duty cycle (0..255)h]hFan target duty cycle (0..255)}(hj hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK7hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(hpwm[1-4]_enableh]hpwm[1-4]_enable}(hj@hhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK8hj=ubah}(h]h ]h"]h$]h&]uh1jhj:ubj)}(hhh]h)}(h0: Full-speed 1: Manual PWM control 2: Automatic PWM (tach-feedback RPM fan-control) 3: Automatic closed-loop (temp-feedback fan-control)h]h0: Full-speed 1: Manual PWM control 2: Automatic PWM (tach-feedback RPM fan-control) 3: Automatic closed-loop (temp-feedback fan-control)}(hjWhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK8hjTubah}(h]h ]h"]h$]h&]uh1jhj:ubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(htemp[1-11]_crith]htemp[1-11]_crit}(hjwhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK=hjtubah}(h]h ]h"]h$]h&]uh1jhjqubj)}(hhh]h)}(hCritical high temperatureh]hCritical high temperature}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK=hjubah}(h]h ]h"]h$]h&]uh1jhjqubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(htemp[1-11]_crit_alarmh]htemp[1-11]_crit_alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK>hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(h$Chip temperature critical high alarmh]h$Chip temperature critical high alarm}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK>hjubah}(h]h ]h"]h$]h&]uh1jhjubeh}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh](j)}(hhh]h)}(htemp[1-11]_inputh]htemp[1-11]_input}(hjhhhNhNubah}(h]h ]h"]h$]h&]uh1hhhhK?hjubah}(h]h ]h"]h$]h&]uh1jhjubj)}(hhh]h)}(hMeasured temperatureh]hMeasured temperature}(hjhhhNhNubah}(h]h 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