Merge pull request #18 from karlvoigtland/master

[groeck-nct6775] / README

diff --git a/README b/README
index 4131403f6e3bbba3a83143c21799f2fca2573a22..8fcb54332fd2cc13922f0a954274d891ac508082 100644 (file)
--- a/README
+++ b/README
@@ -2,22 +2,19 @@ Note
 ====
 
 This driver supercedes the NCT6775F and NCT6776F support in the W83627EHF
-driver. It supports NCT6775F, NCT6776F, and NCT6779D.
+driver. It supports NCT6106D, NCT6775F, NCT6776F, NCT6779D, and NCT6791D.
 
-Preliminary support for NCT6106D is available in the nct6106 git branch.
-The code in this branch is untested.
-
-The driver should be in shape for upstream integration, and has been submitted
-to the lm-sensors mailing list for that purpose. Testing and review feedback
-will be required for the driver to be actually integrated. If you use the latest
-version of this driver, and/or if you can provide review feedback, please let
-the author know.
+The driver is also available in the upstream kernel. This version is maintained
+for backward compatibility with older kernels. I am trying to keep it buildable
+for older kernels, but may miss a problem once in a while. If you have a problem
+compiling this driver with any kernel version 2.6.16 or later, please let me
+know. 
 
 Kernel driver NCT6775
 =======================
 
 Supported chips:
-  * Nuvoton NCT6106
+  * Nuvoton NCT6102D/NCT6104D/NCT6106D
     Prefix: 'nct6106'
     Addresses scanned: ISA address retrieved from Super I/O registers
     Datasheet: Available from Nuvoton upon request
@@ -33,16 +30,21 @@ Supported chips:
     Prefix: 'nct6779'
     Addresses scanned: ISA address retrieved from Super I/O registers
     Datasheet: Available from Nuvoton upon request
+  * Nuvoton NCT6791D
+    Prefix: 'nct6791'
+    Addresses scanned: ISA address retrieved from Super I/O registers
+    Datasheet: Available from Nuvoton upon request
 
 Authors:
         Guenter Roeck <linux@roeck-us.net>
+        David Bartley <andareed@gmail.com> (NCT6791D support)
 
 Description
 -----------
 
 This driver implements support for the Nuvoton NCT6106D, NCT6775F, NCT6776F,
-and NCT6779D super I/O chips. We will refer to them collectively as Nuvoton
-chips.
+NCT6779D, and NCT6791D super I/O chips. We will refer to them collectively as
+Nuvoton chips.
 
 The chips implement up to 8 temperature sensors depending on the chip type and
 configuration. Temperatures used to control fan speed are reported separately.
@@ -199,3 +201,19 @@ temperatures, and in some cases the reported temperature declines if the actual
 temperature increases (similar to the raw PECI temperature value - see PECI
 specification for details). CPUTIN should therefore be be ignored on ASUS
 boards. The CPU temperature on ASUS boards is reported from PECI 0.
+
+Also, there have been reports that not all fan speeds are reported on at least
+some ASUS boards. P9X79 WS is one example, where fan speed is only reported
+for two of the fans on the board.
+
+Note that ASUS does not support Linux on desktop boards (this appears to be
+official ASUS policy) and does not release board specifications, so there is
+nothing we can do to improve support for such boards unless we get board
+specifications or a detailed description on how to control the fans on the
+affected boards.
+
+Known Problems
+--------------
+
+After a suspend/resume cycle, all fan control settings are restored to the BIOS
+defaults.