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Annotation of src/share/man/man4/lm.4, Revision 1.36

1.36    ! wiz         1: .\"    $NetBSD: lm.4,v 1.35 2018/03/08 07:35:21 msaitoh Exp $
1.1       groo        2: .\"
                      3: .\" Copyright (c) 2000 The NetBSD Foundation, Inc.
                      4: .\" All rights reserved.
                      5: .\"
                      6: .\" This code is derived from software contributed to The NetBSD Foundation
                      7: .\" by Bill Squier.
                      8: .\"
                      9: .\" Redistribution and use in source and binary forms, with or without
                     10: .\" modification, are permitted provided that the following conditions
                     11: .\" are met:
                     12: .\" 1. Redistributions of source code must retain the above copyright
                     13: .\"    notice, this list of conditions and the following disclaimer.
                     14: .\" 2. Redistributions in binary form must reproduce the above copyright
                     15: .\"    notice, this list of conditions and the following disclaimer in the
                     16: .\"    documentation and/or other materials provided with the distribution.
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                     18: .\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     19: .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     20: .\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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1.35      msaitoh    30: .Dd March 8, 2018
1.1       groo       31: .Dt LM 4
                     32: .Os
                     33: .Sh NAME
                     34: .Nm lm
                     35: .Nd National Semiconductor LM78, LM79 and compatible hardware monitors
                     36: .Sh SYNOPSIS
1.27      pgoyette   37: .Cd "lm0 at isa? port 0x280 flags 0x00"
                     38: .Cd "lm1 at isa? port 0x290 flags 0x00"
                     39: .Cd "lm2 at isa? port 0x310 flags 0x00"
                     40: .Cd "lm3 at isa? port 0xa00 flags 0x00"
                     41: .Cd "lm0 at pnpbios0 index ? flags 0x00"
                     42: .Cd "lm0 at iic? addr 0x2e flags 0x00"
1.32      cnst       43: .Cd "lm* at wbsio?"
1.1       groo       44: .Sh DESCRIPTION
                     45: The
                     46: .Nm
1.36    ! wiz        47: driver provides support for the National Semiconductor
1.1       groo       48: LM series hardware monitors and register compatible chips to be used with
                     49: the
                     50: .Xr envsys 4
                     51: API.
                     52: .Pp
1.33      msaitoh    53: The original LM78 hardware monitor supports 11 sensors:
1.1       groo       54: .Bl -column "Sensor" "Units" "Typical" -offset indent
                     55: .It Sy "Sensor" Ta Sy "Units" Ta Sy "Typical Use"
                     56: .It Li "IN0" Ta "uV DC" Ta "Core voltage"
                     57: .It Li "IN1" Ta "uV DC" Ta "unknown"
                     58: .It Li "IN2" Ta "uV DC" Ta "+3.3V"
                     59: .It Li "IN3" Ta "uV DC" Ta "+5V"
                     60: .It Li "IN4" Ta "uV DC" Ta "+12V"
                     61: .It Li "IN5" Ta "uV DC" Ta "-12V"
                     62: .It Li "IN6" Ta "uV DC" Ta "-5V"
                     63: .It Li "Temp" Ta "uK" Ta "Motherboard Temperature"
                     64: .It Li "Fan0" Ta "RPM" Ta "Fan"
                     65: .It Li "Fan1" Ta "RPM" Ta "Chassis Fan"
                     66: .It Li "Fan2" Ta "RPM" Ta "Fan"
                     67: .El
1.33      msaitoh    68: For other devices, sensors' names and numbers will be different.
1.1       groo       69: .Pp
1.3       groo       70: Due to hardware limitations, fresh sensor data is only available every
1.22      xtraeme    71: 2 seconds.
1.1       groo       72: .Sh HARDWARE
                     73: Chips supported by the
                     74: .Nm
                     75: driver include:
                     76: .Bl -item -offset indent
                     77: .It
1.36    ! wiz        78: National Semiconductor
1.19      xtraeme    79: .Em LM78 ,
                     80: .Em LM78-J ,
1.36    ! wiz        81: .Em LM79 ,
1.21      wiz        82: and
1.19      xtraeme    83: .Em LM81 .
1.17      xtraeme    84: .It
1.36    ! wiz        85: Nuvoton
1.33      msaitoh    86: .Em NCT5104D ,
                     87: .Em NCT6775F ,
                     88: .Em NCT6776F ,
                     89: .Em NCT6102D ,
                     90: .Em NCT6104D ,
                     91: .Em NCT6106D ,
                     92: .Em NCT6779D ,
                     93: .Em NCT6791D ,
                     94: .Em NCT6792D ,
                     95: .Em NCT6793D ,
1.36    ! wiz        96: .Em NCT6795D ,
1.35      msaitoh    97: and
                     98: .Em NCT6796D .
1.33      msaitoh    99: .It
1.36    ! wiz       100: Winbond
1.27      pgoyette  101: .Em W83627HF* ,
1.29      pgoyette  102: .Em W83627THF* ,
                    103: .Em W83627EHF* ,
                    104: .Em W83627DHG* ,
                    105: .Em W83637HF* ,
                    106: .Em W83697HF* ,
1.14      wiz       107: .Em W83781D ,
1.29      pgoyette  108: .Em W83782D* ,
                    109: .Em W83783S* ,
                    110: .Em W83791D* ,
1.36    ! wiz       111: .Em W83791SD ,
1.7       bouyer    112: and
1.19      xtraeme   113: .Em W83792D .
                    114: .It
1.36    ! wiz       115: ASUS
1.19      xtraeme   116: .Em AS99127F .
1.9       msaitoh   117: .El
1.31      njoly     118: .Pp
1.29      pgoyette  119: For most of the Winbond chips (identified with a * above), the
1.27      pgoyette  120: .Em flags
                    121: configuration option can be specified to select the type of temperature
                    122: sensor:
                    123: .Bl -column "flags" "Sensor Type" -offset indent
                    124: .It Sy "flags" Ta Sy "Sensor Type"
1.30      pgoyette  125: .It Li "0" Ta "Thermistor diode (Power-On default)"
1.27      pgoyette  126: .It Li "1" Ta "Pentium-II diode"
                    127: .It Li "2" Ta "2N3904 Bipolar"
                    128: .It Li "4" Ta "Thermistor diode"
                    129: .El
1.1       groo      130: .Sh SEE ALSO
1.5       enami     131: .Xr envsys 4 ,
1.32      cnst      132: .Xr wbsio 4 ,
1.5       enami     133: .Xr envstat 8
1.1       groo      134: .Sh HISTORY
                    135: The
                    136: .Nm
                    137: device appeared in
                    138: .Nx 1.5 .
1.33      msaitoh   139: .Sh CAVEATS
                    140: Some vendors connect these chips to non-standard thermal diodes and
                    141: resistors.
                    142: This will result in bogus sensor values.
1.11      wiz       143: .Sh BUGS
                    144: Interrupt support is unimplemented.
                    145: .Pp
                    146: There are currently no known pnpbios IDs assigned to LM chips.