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| author | Thomas Renninger <[email protected]> | 2014-04-07 13:16:57 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2014-04-28 10:36:56 +0000 |
| commit | d7cddbb07b18cc45e57420005850ca0326b9e074 (patch) | |
| tree | 7d640a12341524d0227c7829e5ec990dd378ad13 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | Linux 3.15-rc3 (diff) | |
| download | kernel-d7cddbb07b18cc45e57420005850ca0326b9e074.tar.gz kernel-d7cddbb07b18cc45e57420005850ca0326b9e074.zip | |
ACPI / tools: Introduce ec_access.c - tool to access the EC
This userspace tool accesses the EC through the ec_sys debug driver
(through /sys/kernel/debug/ec/ec0/io).
The EC command/data registers cannot be accessed directly, because they
may be manipulated by the AML interpreter in parallel.
The ec_sys driver synchronizes user space (debug) access with the AML
interpreter.
Signed-off-by: Thomas Renninger <[email protected]>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
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