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Update README to match upstream documentation

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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck
2016-09-21 07:55:34 -07:00
parent 7e0c088547
commit 7eca346314
1 changed files with 41 additions and 15 deletions
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README
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@@ -6,6 +6,13 @@ Supported chips:
Prefix: 'it8603'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8620E
Prefix: 'it8620'
Addresses scanned: from Super I/O config space (8 I/O ports)
* IT8628E
Prefix: 'it8628'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8705F
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -34,6 +41,10 @@ Supported chips:
Prefix: 'it8728'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8732F
Prefix: 'it8732'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8771E
Prefix: 'it8771'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -58,6 +69,10 @@ Supported chips:
Prefix: 'it8786'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* IT8790E
Prefix: 'it8790'
Addresses scanned: from Super I/O config space (8 I/O ports)
Datasheet: Not publicly available
* SiS950 [clone of IT8705F]
Prefix: 'it87'
Addresses scanned: from Super I/O config space (8 I/O ports)
@@ -102,9 +117,10 @@ motherboard models.
Description
-----------
This driver implements support for the IT8603E, IT8623E, IT8705F, IT8712F,
IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8758E, IT8771E,
IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, and SiS950 chips.
This driver implements support for the IT8603E, IT8620E, IT8623E, IT8628E,
IT8705F, IT8712F, IT8716F, IT8718F, IT8720F, IT8721F, IT8726F, IT8728F, IT8732F,
IT8758E, IT8771E, IT8772E, IT8781F, IT8782F, IT8783E/F, IT8786E, IT8790E, and
SiS950 chips.
These chips are 'Super I/O chips', supporting floppy disks, infrared ports,
joysticks and other miscellaneous stuff. For hardware monitoring, they
@@ -128,10 +144,10 @@ The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E and later IT8712F revisions
have support for 2 additional fans. The additional fans are supported by the
driver.
The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8781F, IT8782F, IT8783E/F,
and late IT8712F and IT8705F also have optional 16-bit tachometer counters
for fans 1 to 3. This is better (no more fan clock divider mess) but not
compatible with the older chips and revisions. The 16-bit tachometer mode
The IT8716F, IT8718F, IT8720F, IT8721F/IT8758E, IT8732F, IT8781F, IT8782F,
IT8783E/F, and late IT8712F and IT8705F also have optional 16-bit tachometer
counters for fans 1 to 3. This is better (no more fan clock divider mess) but
not compatible with the older chips and revisions. The 16-bit tachometer mode
is enabled by the driver when one of the above chips is detected.
The IT8726F is just bit enhanced IT8716F with additional hardware
@@ -142,8 +158,16 @@ The IT8728F, IT8771E, and IT8772E are considered compatible with the IT8721F,
until a datasheet becomes available (hopefully.)
The IT8603E/IT8623E is a custom design, hardware monitoring part is similar to
IT8728F. It only supports 16-bit fan mode, the full speed mode of the
fan is not supported (value 0 of pwmX_enable).
IT8728F. It only supports 3 fans, 16-bit fan mode, and the full speed mode
of the fan is not supported (value 0 of pwmX_enable).
The IT8620E and IT8628E are custom designs, hardware monitoring part is similar
to IT8728F. It only supports 16-bit fan mode. Both chips support up to 6 fans.
The IT8790E supports up to 3 fans. 16-bit fan mode is always enabled.
The IT8732F supports a closed-loop mode for fan control, but this is not
currently implemented by the driver.
Temperatures are measured in degrees Celsius. An alarm is triggered once
when the Overtemperature Shutdown limit is crossed.
@@ -159,13 +183,15 @@ is done.
Voltage sensors (also known as IN sensors) report their values in volts. An
alarm is triggered if the voltage has crossed a programmable minimum or
maximum limit. Note that minimum in this case always means 'closest to
zero'; this is important for negative voltage measurements. All voltage
inputs can measure voltages between 0 and 4.08 volts, with a resolution of
0.016 volt (except IT8603E, IT8721F/IT8758E and IT8728F: 0.012 volt.) The
battery voltage in8 does not have limit registers.
zero'; this is important for negative voltage measurements. On most chips, all
voltage inputs can measure voltages between 0 and 4.08 volts, with a resolution
of 0.016 volt. IT8603E, IT8721F/IT8758E and IT8728F can measure between 0 and
3.06 volts, with a resolution of 0.012 volt. IT8732F can measure between 0 and
2.8 volts with a resolution of 0.0109 volt. The battery voltage in8 does not
have limit registers.
On the IT8603E, IT8721F/IT8758E, IT8781F, IT8782F, and IT8783E/F, some
voltage inputs are internal and scaled inside the chip:
On the IT8603E, IT8620E, IT8628E, IT8721F/IT8758E, IT8732F, IT8781F, IT8782F,
and IT8783E/F, some voltage inputs are internal and scaled inside the chip:
* in3 (optional)
* in7 (optional for IT8781F, IT8782F, and IT8783E/F)
* in8 (always)