This patch adds standard documentation for the userspace sysfs attributes of the Simple Counter interface.
Signed-off-by: William Breathitt Gray <[email protected]> --- .../ABI/testing/sysfs-bus-counter-simple-sysfs | 61 ++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-counter-simple-sysfs diff --git a/Documentation/ABI/testing/sysfs-bus-counter-simple-sysfs b/Documentation/ABI/testing/sysfs-bus-counter-simple-sysfs new file mode 100644 index 000000000000..e1f32c64c667 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-counter-simple-sysfs @@ -0,0 +1,61 @@ +What: /sys/bus/counter/devices/counterX/countY +KernelVersion: 4.16 +Contact: [email protected] +Description: + Count data of Count Y. This is a signed integer value that + represents the accumulated count. + +What: /sys/bus/counter/devices/counterX/countY_function +KernelVersion: 4.16 +Contact: [email protected] +Description: + Count function mode of Count Y. Count function evaluation is + triggered by conditions specified by the countY_signalZ_action + attributes. Two count function modes are available: increase and + decrease. + + Increase: + Accumulated count is incremented. + + Decrease: + Accumulated count is decremented. + +What: /sys/bus/counter/devices/counterX/countY_max +KernelVersion: 4.16 +Contact: [email protected] +Description: + Count Y count data maximum value. + +What: /sys/bus/counter/devices/counterX/countY_min +KernelVersion: 4.16 +Contact: [email protected] +Description: + Count Y count data minimum value. + +What: /sys/bus/counter/devices/counterX/countY_signalZ_action +KernelVersion: 4.16 +Contact: [email protected] +Description: + Action mode of Count Y for Signal Z. This attribute indicates + the condition of Signal Z that triggers the count function + evaluation for Count Y. Four action modes are available: none, + rising edge, falling edge, and both edges. + + None: + Signal does not trigger the count function. + + Rising Edge: + Low state transitions to High state. + + Falling Edge: + High state transitions to Low state. + + Both Edges: + Any state transition. + +What: /sys/bus/counter/devices/counterX/signalY +KernelVersion: 4.16 +Contact: [email protected] +Description: + Signal data of Signal Y. This is the respective input level + represented by two available states: low and high. -- 2.15.1
