The line values passed by the GPIO uAPI are logical values, and the edges returned are based on changes to logical line values. While the documentation consistently uses active/inactive terminology to identify the values as logical, this is never explicitly spelt out. This series clarifies those points, with paricular emphasis on the effect the active low flag has on values and edge polarity. Patch 1 provides clarification for ioctls passing line values. Patch 2 provides clarification for functions returning edge events. Cheers, Kent. Kent Gibson (2): Documentation: gpio: Clarify effect of active low flag on line values Documentation: gpio: Clarify effect of active low flag on line edges .../gpio/gpio-handle-get-line-values-ioctl.rst | 7 +++++++ .../gpio/gpio-handle-set-line-values-ioctl.rst | 7 +++++++ .../userspace-api/gpio/gpio-lineevent-data-read.rst | 5 +++++ .../userspace-api/gpio/gpio-v2-line-event-read.rst | 5 +++++ .../userspace-api/gpio/gpio-v2-line-get-values-ioctl.rst | 7 +++++++ .../userspace-api/gpio/gpio-v2-line-set-values-ioctl.rst | 7 +++++++ 6 files changed, 38 insertions(+) -- 2.39.2
