Documentation/hwmon/abituguru.rst

   1 Kernel driver abituguru
   2 =======================
   3
   4 Supported chips:
   5
   6   * Abit uGuru revision 1 & 2 (Hardware Monitor part only)
   7
   8     Prefix: 'abituguru'
   9
  10     Addresses scanned: ISA 0x0E0
  11
  12     Datasheet: Not available, this driver is based on reverse engineering.
  13     A "Datasheet" has been written based on the reverse engineering it
  14     should be available in the same dir as this file under the name
  15     abituguru-datasheet.
  16
  17     Note:
  18         The uGuru is a microcontroller with onboard firmware which programs
  19         it to behave as a hwmon IC. There are many different revisions of the
  20         firmware and thus effectivly many different revisions of the uGuru.
  21         Below is an incomplete list with which revisions are used for which
  22         Motherboards:
  23
  24         - uGuru 1.00    ~ 1.24    (AI7, KV8-MAX3, AN7) [1]_
  25         - uGuru 2.0.0.0 ~ 2.0.4.2 (KV8-PRO)
  26         - uGuru 2.1.0.0 ~ 2.1.2.8 (AS8, AV8, AA8, AG8, AA8XE, AX8)
  27         - uGuru 2.2.0.0 ~ 2.2.0.6 (AA8 Fatal1ty)
  28         - uGuru 2.3.0.0 ~ 2.3.0.9 (AN8)
  29         - uGuru 3.0.0.0 ~ 3.0.x.x (AW8, AL8, AT8, NI8 SLI, AT8 32X, AN8 32X,
  30           AW9D-MAX) [2]_
  31
  32 .. [1]  For revisions 2 and 3 uGuru's the driver can autodetect the
  33         sensortype (Volt or Temp) for bank1 sensors, for revision 1 uGuru's
  34         this does not always work. For these uGuru's the autodetection can
  35         be overridden with the bank1_types module param. For all 3 known
  36         revison 1 motherboards the correct use of this param is:
  37         bank1_types=1,1,0,0,0,0,0,2,0,0,0,0,2,0,0,1
  38         You may also need to specify the fan_sensors option for these boards
  39         fan_sensors=5
  40
  41 .. [2]  There is a separate abituguru3 driver for these motherboards,
  42         the abituguru (without the 3 !) driver will not work on these
  43         motherboards (and visa versa)!
  44
  45 Authors:
  46         - Hans de Goede <j.w.r.degoede@hhs.nl>,
  47         - (Initial reverse engineering done by Olle Sandberg
  48           <ollebull@gmail.com>)
  49
  50
  51 Module Parameters
  52 -----------------
  53
  54 * force: bool
  55                         Force detection. Note this parameter only causes the
  56                         detection to be skipped, and thus the insmod to
  57                         succeed. If the uGuru can't be read the actual hwmon
  58                         driver will not load and thus no hwmon device will get
  59                         registered.
  60 * bank1_types: int[]
  61                         Bank1 sensortype autodetection override:
  62
  63                           * -1 autodetect (default)
  64                           *  0 volt sensor
  65                           *  1 temp sensor
  66                           *  2 not connected
  67 * fan_sensors: int
  68                         Tell the driver how many fan speed sensors there are
  69                         on your motherboard. Default: 0 (autodetect).
  70 * pwms: int
  71                         Tell the driver how many fan speed controls (fan
  72                         pwms) your motherboard has. Default: 0 (autodetect).
  73 * verbose: int
  74                         How verbose should the driver be? (0-3):
  75
  76                            * 0 normal output
  77                            * 1 + verbose error reporting
  78                            * 2 + sensors type probing info (default)
  79                            * 3 + retryable error reporting
  80
  81                         Default: 2 (the driver is still in the testing phase)
  82
  83 Notice: if you need any of the first three options above please insmod the
  84 driver with verbose set to 3 and mail me <j.w.r.degoede@hhs.nl> the output of:
  85 dmesg | grep abituguru
  86
  87
  88 Description
  89 -----------
  90
  91 This driver supports the hardware monitoring features of the first and
  92 second revision of the Abit uGuru chip found on Abit uGuru featuring
  93 motherboards (most modern Abit motherboards).
  94
  95 The first and second revision of the uGuru chip in reality is a Winbond
  96 W83L950D in disguise (despite Abit claiming it is "a new microprocessor
  97 designed by the ABIT Engineers"). Unfortunately this doesn't help since the
  98 W83L950D is a generic microcontroller with a custom Abit application running
  99 on it.
 100
 101 Despite Abit not releasing any information regarding the uGuru, Olle
 102 Sandberg <ollebull@gmail.com> has managed to reverse engineer the sensor part
 103 of the uGuru. Without his work this driver would not have been possible.
 104
 105 Known Issues
 106 ------------
 107
 108 The voltage and frequency control parts of the Abit uGuru are not supported.
 109
 110 .. toctree::
 111    :maxdepth: 1
 112
 113    abituguru-datasheet.rst