On Monday 31 August 2009, Zhang Rui wrote: > > +passive > > + Attribute is only present for zones which do not have a passive > > + cooling policy (_PSV) defined in ACPI. > > We should not involve any platform specific stuff in this > documentation. how about "Attribute is only present for zones in which > the passive cooling policy is not supported by native thermal driver" [...] > > -If the processor is listed in _PSL method, and the fan is listed in > > _AL0 -method, the sys I/F structure will be built like this: > > +If the processor is listed in _PSL method, the fan is listed in _AL0 > > +method, and the zone has a _PSV method, the sys I/F structure will > > be +built like this: > > For an ACPI thermal zone, supporting passive cooling means that both > _PSL and _PSV are available. > so I don't think we need to change this. :) OK. Updated patch below. From: Frans Pop <elendil@xxxxxxxxx> Subject: thermal: sysfs-api.txt - document passive attribute for thermal zones Signed-off-by: Frans Pop <elendil@xxxxxxxxx> Cc: Zhang Rui <rui.zhang@xxxxxxxxx> Cc: Sujith Thomas <sujith.thomas@xxxxxxxxx> Cc: Matthew Garrett <mjg59@xxxxxxxxxxxxx> diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index 895337f..a87dc27 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -199,6 +199,15 @@ cdev[0-*]_trip_point point. RO, Optional +passive + Attribute is only present for zones in which the passive cooling + policy is not supported by native thermal driver. Default is zero + and can be set to a temperature (in millidegrees) to enable a + passive trip point for the zone. Activation is done by polling + with an interval of 1 second. + Unit: millidegrees Celsius + RW, Optional + ***************************** * Cooling device attributes * ***************************** -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
