ACPI: schedule obsolete features for deletion
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
parent
d6637b28ff
commit
1bb67c2582
|
@ -256,3 +256,48 @@ Why: Speedstep-centrino driver with ACPI hooks and acpi-cpufreq driver are
|
||||||
Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
|
Who: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
|
||||||
|
|
||||||
---------------------------
|
---------------------------
|
||||||
|
|
||||||
|
What: ACPI hotkey driver (CONFIG_ACPI_HOTKEY)
|
||||||
|
When: 2.6.21
|
||||||
|
Why: hotkey.c was an attempt to consolidate multiple drivers that use
|
||||||
|
ACPI to implement hotkeys. However, hotkeys are not documented
|
||||||
|
in the ACPI specification, so the drivers used undocumented
|
||||||
|
vendor-specific hooks and turned out to be more different than
|
||||||
|
the same.
|
||||||
|
|
||||||
|
Further, the keys and the features supplied by each platform
|
||||||
|
are different, so there will always be a need for
|
||||||
|
platform-specific drivers.
|
||||||
|
|
||||||
|
So the new plan is to delete hotkey.c and instead, work on the
|
||||||
|
platform specific drivers to try to make them look the same
|
||||||
|
to the user when they supply the same features.
|
||||||
|
|
||||||
|
hotkey.c has always depended on CONFIG_EXPERIMENTAL
|
||||||
|
|
||||||
|
Who: Len Brown <len.brown@intel.com>
|
||||||
|
|
||||||
|
---------------------------
|
||||||
|
|
||||||
|
What: /sys/firmware/acpi/namespace
|
||||||
|
When: 2.6.21
|
||||||
|
Why: The ACPI namespace is effectively the symbol list for
|
||||||
|
the BIOS. The device names are completely arbitrary
|
||||||
|
and have no place being exposed to user-space.
|
||||||
|
|
||||||
|
For those interested in the BIOS ACPI namespace,
|
||||||
|
the BIOS can be extracted and disassembled with acpidump
|
||||||
|
and iasl as documented in the pmtools package here:
|
||||||
|
http://ftp.kernel.org/pub/linux/kernel/people/lenb/acpi/utils
|
||||||
|
|
||||||
|
Who: Len Brown <len.brown@intel.com>
|
||||||
|
|
||||||
|
---------------------------
|
||||||
|
|
||||||
|
What: /proc/acpi/button
|
||||||
|
When: August 2007
|
||||||
|
Why: /proc/acpi/button has been replaced by events to the input layer
|
||||||
|
since 2.6.20.
|
||||||
|
Who: Len Brown <len.brown@intel.com>
|
||||||
|
|
||||||
|
---------------------------
|
||||||
|
|
Loading…
Reference in New Issue