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| author | William Breathitt Gray <william.gray@linaro.org> | 2022-09-27 18:53:40 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-30 14:32:35 +0200 |
| commit | 45d2918520b2d8e640e4fb3fbf664dfb823dc520 (patch) | |
| tree | 94e9ccceeb8ef6f7ea716ead09f4a929fef8a70c /include/uapi | |
| parent | 9830288aeada5ec8ded1665aafe2d2b8f4121bad (diff) | |
| download | lwn-45d2918520b2d8e640e4fb3fbf664dfb823dc520.tar.gz lwn-45d2918520b2d8e640e4fb3fbf664dfb823dc520.zip | |
counter: Introduce the Count capture component
Some devices provide a latch function to save historic Count values.
This patch standardizes exposure of such functionality as Count capture
components. A COUNTER_COMP_CAPTURE macro is provided for driver authors
to define a capture component. A new event COUNTER_EVENT_CAPTURE is
introduced to represent Count value capture events.
Cc: Julien Panis <jpanis@baylibre.com>
Link: https://lore.kernel.org/r/c239572ab4208d0d6728136e82a88ad464369a7a.1664204990.git.william.gray@linaro.org/
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Link: https://lore.kernel.org/r/3cebaa0b807a225eb277d771504fe6dba7269ffd.1664318353.git.william.gray@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/counter.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/counter.h b/include/uapi/linux/counter.h index e9610e1944dc..8ab12d731e3b 100644 --- a/include/uapi/linux/counter.h +++ b/include/uapi/linux/counter.h @@ -63,6 +63,8 @@ enum counter_event_type { COUNTER_EVENT_INDEX, /* State of counter is changed */ COUNTER_EVENT_CHANGE_OF_STATE, + /* Count value captured */ + COUNTER_EVENT_CAPTURE, }; /** |