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authorThomas Renninger2014-04-07 15:16:57 +0200
committerRafael J. Wysocki2014-04-28 12:36:56 +0200
commitd7cddbb07b18cc45e57420005850ca0326b9e074 (patch)
tree7d640a12341524d0227c7829e5ec990dd378ad13 /drivers/platform/goldfish/goldfish_pipe.c
parentLinux 3.15-rc3 (diff)
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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 <trenn@suse.de> [rjw: Changelog] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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