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| author |   Hans de Goede <hdegoede@redhat.com> | 2021-08-16 13:30:07 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-08-16 18:32:02 +0200 |
| commit | b25d5a1cd19896bb87b399d6e24896cf6f854d44 (patch) | |
| tree | b334601a18f581fea190dad06855bb7c4aecb6ad /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Linux 5.14-rc6 (diff) | |
| download | linux-dev-b25d5a1cd19896bb87b399d6e24896cf6f854d44.tar.xz linux-dev-b25d5a1cd19896bb87b399d6e24896cf6f854d44.zip | |
ACPI: platform-profile: call sysfs_notify() from platform_profile_store()
Drivers like thinkpad_acpi and ideapad_laptop call the
platform_profile_notify() helper when the profile is changed by hardware
(the embedded-controller/EC) in response to an EC handled hotkey.
This allows userspace to monitor for such changes by polling for POLLPRI
on the platform_profile sysfs file. But the profile can also be changed
underneath a userspace program monitoring it by anonther userspace program
storing a new value.
Add a sysfs_notify() call to platform_profile_store(), so that userspace
programs monitoring for changes also get notified in this case.
Also update the documentation to document that POLLPRI polling can be
used to watch for changes.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions