diff options
| author | Oleksij Rempel <[email protected]> | 2021-03-01 09:04:01 +0100 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2021-03-25 19:13:51 +0000 |
| commit | a55ebd47f21f6f0472766fb52c973849e31d1466 (patch) | |
| tree | 80af6b63962442b5a719f22a7adcc128e479cfbe /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 0b8061c340b643e01da431dd60c75a41bb1d31ec (diff) | |
counter: add IRQ or GPIO based counter
Add simple IRQ or GPIO base counter. This device is used to measure
rotation speed of some agricultural devices, so no high frequency on the
counter pin is expected.
The maximal measurement frequency depends on the CPU and system load. On
the idle iMX6S I was able to measure up to 20kHz without count drops.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Ahmad Fatoum <[email protected]>
Reviewed-by: William Breathitt Gray <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions