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ACPI: thinkpad-acpi: checkpoint sysfs interface version due to hotkey

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The change in the size of the hotkey mask, the hability to report the keys
that use the higher bits, and the addition of the hotkey_radio_sw attribute
are important enough features to warrant increasing the minor field of the
sysfs interface version.

Also, document a bit better how and when the thinkpad-acpi sysfs interface
version will be updated.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Henrique de Moraes Holschuh 2007-07-18 23:45:32 -03:00 committed by Len Brown
parent 74941a69af
commit 94b0871318
2 changed files with 18 additions and 1 deletions
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17
Documentation/thinkpad-acpi.txt
View file

@ -134,6 +134,21 @@ end of this document. Changes to the sysfs interface done by the kernel
subsystems are not documented here, nor are they tracked by this
attribute.
Changes to the thinkpad-acpi sysfs interface are only considered
non-experimental when they are submitted to Linux mainline, at which
point the changes in this interface are documented and interface_version
may be updated. If you are using any thinkpad-acpi features not yet
sent to mainline for merging, you do so on your own risk: these features
may disappear, or be implemented in a different and incompatible way by
the time they are merged in Linux mainline.
Changes that are backwards-compatible by nature (e.g. the addition of
attributes that do not change the way the other attributes work) do not
always warrant an update of interface_version. Therefore, one must
expect that an attribute might not be there, and deal with it properly
(an attribute not being there *is* a valid way to make it clear that a
feature is not available in sysfs).
Hot keys
--------
@ -989,3 +1004,5 @@ Sysfs interface changelog:
0x000100: Initial sysfs support, as a single platform driver and
device.
0x000200: Hot key support for 32 hot keys, and radio slider switch
support.

2
drivers/misc/thinkpad_acpi.c
View file

@ -22,7 +22,7 @@
*/
#define IBM_VERSION "0.14"
#define TPACPI_SYSFS_VERSION 0x000100
#define TPACPI_SYSFS_VERSION 0x000200
/*
* Changelog: