| Message ID | 20180213185410.GA27234@mordor.localdomain (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | Rafael Wysocki |
| Headers | show |
On Tuesday, February 13, 2018 7:54:10 PM CET Aishwarya Pant wrote: > Add documentation for two attributes - status and hrv in > Documentation/ABI/testing/sysfs-bus-acpi. Compiled from git logs and the > ACPI specification. > > Signed-off-by: Aishwarya Pant <aishpant@gmail.com> > --- > Documentation/ABI/testing/sysfs-bus-acpi | 36 ++++++++++++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-bus-acpi b/Documentation/ABI/testing/sysfs-bus-acpi > index 7fa9cbc75344..89feb01d1d0d 100644 > --- a/Documentation/ABI/testing/sysfs-bus-acpi > +++ b/Documentation/ABI/testing/sysfs-bus-acpi > @@ -56,3 +56,39 @@ Description: > Writing 1 to this attribute will trigger hot removal of > this device object. This file exists for every device > object that has _EJ0 method. > + > +What: /sys/bus/acpi/devices/.../status > +Date: Jan, 2014 > +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> > +Description: > + (RO) Displays the ACPI device status - enabled, disabled or > + functioning or present, if the method _STA is present. > + > + Return value is an integer containing a device status bitmap: > + > + Bit [0] – Set if the device is present. > + Bit [1] – Set if the device is enabled and decoding its > + resources. > + Bit [2] – Set if the device should be shown in the UI. > + Bit [3] – Set if the device is functioning properly (cleared if > + device failed its diagnostics). > + Bit [4] – Set if the battery is present. > + Bits [31:5] – Reserved (must be cleared) > + > + If bit [0] is cleared, then bit 1 must also be cleared (a device > + that is not present cannot be enabled). > + > + Bit 0 can be clear (not present) with bit [3] set (device is > + functional). This case is used to indicate a valid device for > + which no device driver should be loaded. > + > + More special cases are covered in the ACPI specification. > + > +What: /sys/bus/acpi/devices/.../hrv > +Date: Apr, 2016 > +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> > +Description: > + (RO) Allows users to read the hardware version of non-PCI > + hardware, if the _HRV control method is present. It is most > + useful for non-PCI devices because lspci can list the hardware > + version for PCI devices. > Applied, thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/ABI/testing/sysfs-bus-acpi b/Documentation/ABI/testing/sysfs-bus-acpi index 7fa9cbc75344..89feb01d1d0d 100644 --- a/Documentation/ABI/testing/sysfs-bus-acpi +++ b/Documentation/ABI/testing/sysfs-bus-acpi @@ -56,3 +56,39 @@ Description: Writing 1 to this attribute will trigger hot removal of this device object. This file exists for every device object that has _EJ0 method. + +What: /sys/bus/acpi/devices/.../status +Date: Jan, 2014 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + (RO) Displays the ACPI device status - enabled, disabled or + functioning or present, if the method _STA is present. + + Return value is an integer containing a device status bitmap: + + Bit [0] – Set if the device is present. + Bit [1] – Set if the device is enabled and decoding its + resources. + Bit [2] – Set if the device should be shown in the UI. + Bit [3] – Set if the device is functioning properly (cleared if + device failed its diagnostics). + Bit [4] – Set if the battery is present. + Bits [31:5] – Reserved (must be cleared) + + If bit [0] is cleared, then bit 1 must also be cleared (a device + that is not present cannot be enabled). + + Bit 0 can be clear (not present) with bit [3] set (device is + functional). This case is used to indicate a valid device for + which no device driver should be loaded. + + More special cases are covered in the ACPI specification. + +What: /sys/bus/acpi/devices/.../hrv +Date: Apr, 2016 +Contact: Rafael J. Wysocki <rjw@rjwysocki.net> +Description: + (RO) Allows users to read the hardware version of non-PCI + hardware, if the _HRV control method is present. It is most + useful for non-PCI devices because lspci can list the hardware + version for PCI devices.
Add documentation for two attributes - status and hrv in Documentation/ABI/testing/sysfs-bus-acpi. Compiled from git logs and the ACPI specification. Signed-off-by: Aishwarya Pant <aishpant@gmail.com> --- Documentation/ABI/testing/sysfs-bus-acpi | 36 ++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+)