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Diffstat (limited to 'kernel/Documentation/hwmon/abituguru')
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diff --git a/kernel/Documentation/hwmon/abituguru b/kernel/Documentation/hwmon/abituguru new file mode 100644 index 000000000..915f32063 --- /dev/null +++ b/kernel/Documentation/hwmon/abituguru @@ -0,0 +1,92 @@ +Kernel driver abituguru +======================= + +Supported chips: + * Abit uGuru revision 1 & 2 (Hardware Monitor part only) + Prefix: 'abituguru' + Addresses scanned: ISA 0x0E0 + Datasheet: Not available, this driver is based on reverse engineering. + A "Datasheet" has been written based on the reverse engineering it + should be available in the same dir as this file under the name + abituguru-datasheet. + Note: + The uGuru is a microcontroller with onboard firmware which programs + it to behave as a hwmon IC. There are many different revisions of the + firmware and thus effectivly many different revisions of the uGuru. + Below is an incomplete list with which revisions are used for which + Motherboards: + uGuru 1.00 ~ 1.24 (AI7, KV8-MAX3, AN7) (1) + uGuru 2.0.0.0 ~ 2.0.4.2 (KV8-PRO) + uGuru 2.1.0.0 ~ 2.1.2.8 (AS8, AV8, AA8, AG8, AA8XE, AX8) + uGuru 2.2.0.0 ~ 2.2.0.6 (AA8 Fatal1ty) + uGuru 2.3.0.0 ~ 2.3.0.9 (AN8) + uGuru 3.0.0.0 ~ 3.0.x.x (AW8, AL8, AT8, NI8 SLI, AT8 32X, AN8 32X, + AW9D-MAX) (2) + 1) For revisions 2 and 3 uGuru's the driver can autodetect the + sensortype (Volt or Temp) for bank1 sensors, for revision 1 uGuru's + this doesnot always work. For these uGuru's the autodection can + be overriden with the bank1_types module param. For all 3 known + revison 1 motherboards the correct use of this param is: + bank1_types=1,1,0,0,0,0,0,2,0,0,0,0,2,0,0,1 + You may also need to specify the fan_sensors option for these boards + fan_sensors=5 + 2) There is a separate abituguru3 driver for these motherboards, + the abituguru (without the 3 !) driver will not work on these + motherboards (and visa versa)! + +Authors: + Hans de Goede <j.w.r.degoede@hhs.nl>, + (Initial reverse engineering done by Olle Sandberg + <ollebull@gmail.com>) + + +Module Parameters +----------------- + +* force: bool Force detection. Note this parameter only causes the + detection to be skipped, and thus the insmod to + succeed. If the uGuru can't be read the actual hwmon + driver will not load and thus no hwmon device will get + registered. +* bank1_types: int[] Bank1 sensortype autodetection override: + -1 autodetect (default) + 0 volt sensor + 1 temp sensor + 2 not connected +* fan_sensors: int Tell the driver how many fan speed sensors there are + on your motherboard. Default: 0 (autodetect). +* pwms: int Tell the driver how many fan speed controls (fan + pwms) your motherboard has. Default: 0 (autodetect). +* verbose: int How verbose should the driver be? (0-3): + 0 normal output + 1 + verbose error reporting + 2 + sensors type probing info (default) + 3 + retryable error reporting + Default: 2 (the driver is still in the testing phase) + +Notice if you need any of the first three options above please insmod the +driver with verbose set to 3 and mail me <j.w.r.degoede@hhs.nl> the output of: +dmesg | grep abituguru + + +Description +----------- + +This driver supports the hardware monitoring features of the first and +second revision of the Abit uGuru chip found on Abit uGuru featuring +motherboards (most modern Abit motherboards). + +The first and second revision of the uGuru chip in reality is a Winbond +W83L950D in disguise (despite Abit claiming it is "a new microprocessor +designed by the ABIT Engineers"). Unfortunately this doesn't help since the +W83L950D is a generic microcontroller with a custom Abit application running +on it. + +Despite Abit not releasing any information regarding the uGuru, Olle +Sandberg <ollebull@gmail.com> has managed to reverse engineer the sensor part +of the uGuru. Without his work this driver would not have been possible. + +Known Issues +------------ + +The voltage and frequency control parts of the Abit uGuru are not supported. |