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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-29 15:43:06 -0500
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2012-11-29 15:43:06 -0500
commitd4c091f13dc4d30e4af43c0ccf8c82b3277574ca (patch)
treec3848194792426370048b1a1cb4ddb3f8b0f1133 /Documentation/ABI
parent08ab72980a7747a7615c8ba5a797b651fb1aa976 (diff)
parent261cba2deb7d3bebd180c35d5dbf8961f6e9afc4 (diff)
Merge branch 'acpi-general'
* acpi-general: (38 commits) ACPI / thermal: _TMP and _CRT/_HOT/_PSV/_ACx dependency fix ACPI: drop unnecessary local variable from acpi_system_write_wakeup_device() ACPI: Fix logging when no pci_irq is allocated ACPI: Update Dock hotplug error messages ACPI: Update Container hotplug error messages ACPI: Update Memory hotplug error messages ACPI: Update CPU hotplug error messages ACPI: Add acpi_handle_<level>() interfaces ACPI: remove use of __devexit ACPI / PM: Add Sony Vaio VPCEB1S1E to nonvs blacklist. ACPI / battery: Correct battery capacity values on Thinkpads Revert "ACPI / x86: Add quirk for "CheckPoint P-20-00" to not use bridge _CRS_ info" ACPI: create _SUN sysfs file ACPI / memhotplug: bind the memory device when the driver is being loaded ACPI / memhotplug: don't allow to eject the memory device if it is being used ACPI / memhotplug: free memory device if acpi_memory_enable_device() failed ACPI / memhotplug: fix memory leak when memory device is unbound from acpi_memhotplug ACPI / memhotplug: deal with eject request in hotplug queue ACPI / memory-hotplug: add memory offline code to acpi_memory_device_remove() ACPI / memory-hotplug: call acpi_bus_trim() to remove memory device ... Conflicts: include/linux/acpi.h (two additions at the end of the same file)
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1Whatt: /sys/devices/.../sun
2Date: October 2012
3Contact: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
4Description:
5 The file contains a Slot-unique ID which provided by the _SUN
6 method in the ACPI namespace. The value is written in Advanced
7 Configuration and Power Interface Specification as follows:
8
9 "The _SUN value is required to be unique among the slots of
10 the same type. It is also recommended that this number match
11 the slot number printed on the physical slot whenever possible."
12
13 So reading the sysfs file, we can identify a physical position
14 of the slot in the system.