X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=Documentation%2Fhwmon%2Fvia686a;h=d651b25f751971df193f3928356d4d492df05bc6;hb=098ef215b1e87cff51f983bae4e4e1358b932ec9;hp=b82014cb7c53f10ba376c6e7236e6f82ca82aa49;hpb=62778ba1aa2589dc78c36a32edc6f5a6ccaf50c6;p=linux-2.6-omap-h63xx.git diff --git a/Documentation/hwmon/via686a b/Documentation/hwmon/via686a index b82014cb7c5..d651b25f751 100644 --- a/Documentation/hwmon/via686a +++ b/Documentation/hwmon/via686a @@ -8,7 +8,7 @@ Supported chips: Datasheet: On request through web form (http://www.via.com.tw/en/support/datasheets/) Authors: - Kyösti Mälkki , + Kyösti Mälkki , Mark D. Studebaker Bob Dougherty (Some conversion-factor data were contributed by @@ -18,8 +18,9 @@ Authors: Module Parameters ----------------- -force_addr=0xaddr Set the I/O base address. Useful for Asus A7V boards - that don't set the address in the BIOS. Does not do a +force_addr=0xaddr Set the I/O base address. Useful for boards that + don't set the address in the BIOS. Look for a BIOS + upgrade before resorting to this. Does not do a PCI force; the via686a must still be present in lspci. Don't use this unless the driver complains that the base address is not set. @@ -63,3 +64,15 @@ miss once-only alarms. The driver only updates its values each 1.5 seconds; reading it more often will do no harm, but will return 'old' values. + +Known Issues +------------ + +This driver handles sensors integrated in some VIA south bridges. It is +possible that a motherboard maker used a VT82C686A/B chip as part of a +product design but was not interested in its hardware monitoring features, +in which case the sensor inputs will not be wired. This is the case of +the Asus K7V, A7V and A7V133 motherboards, to name only a few of them. +So, if you need the force_addr parameter, and end up with values which +don't seem to make any sense, don't look any further: your chip is simply +not wired for hardware monitoring.