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- What: /sys/bus/iio/devices/iio:deviceX/in_count_count_mode_available
- What: /sys/bus/iio/devices/iio:deviceX/in_count_noise_error_available
- What: /sys/bus/iio/devices/iio:deviceX/in_count_quadrature_mode_available
- What: /sys/bus/iio/devices/iio:deviceX/in_index_index_polarity_available
- What: /sys/bus/iio/devices/iio:deviceX/in_index_synchronous_mode_available
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Discrete set of available values for the respective counter
- configuration are listed in this file.
- What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_mode
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Count mode for channel Y. Four count modes are available:
- normal, range limit, non-recycle, and modulo-n. The preset value
- for channel Y is used by the count mode where required.
- Normal:
- Counting is continuous in either direction.
- Range Limit:
- An upper or lower limit is set, mimicking limit switches
- in the mechanical counterpart. The upper limit is set to
- the preset value, while the lower limit is set to 0. The
- counter freezes at count = preset when counting up, and
- at count = 0 when counting down. At either of these
- limits, the counting is resumed only when the count
- direction is reversed.
- Non-recycle:
- Counter is disabled whenever a 24-bit count overflow or
- underflow takes place. The counter is re-enabled when a
- new count value is loaded to the counter via a preset
- operation or write to raw.
- Modulo-N:
- A count boundary is set between 0 and the preset value.
- The counter is reset to 0 at count = preset when
- counting up, while the counter is set to the preset
- value at count = 0 when counting down; the counter does
- not freeze at the bundary points, but counts
- continuously throughout.
- What: /sys/bus/iio/devices/iio:deviceX/in_countY_noise_error
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Read-only attribute that indicates whether excessive noise is
- present at the channel Y count inputs in quadrature clock mode;
- irrelevant in non-quadrature clock mode.
- What: /sys/bus/iio/devices/iio:deviceX/in_countY_preset
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- If the counter device supports preset registers, the preset
- count for channel Y is provided by this attribute.
- What: /sys/bus/iio/devices/iio:deviceX/in_countY_quadrature_mode
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Configure channel Y counter for non-quadrature or quadrature
- clock mode. Selecting non-quadrature clock mode will disable
- synchronous load mode. In quadrature clock mode, the channel Y
- scale attribute selects the encoder phase division (scale of 1
- selects full-cycle, scale of 0.5 selects half-cycle, scale of
- 0.25 selects quarter-cycle) processed by the channel Y counter.
- Non-quadrature:
- The filter and decoder circuit are bypassed. Encoder A
- input serves as the count input and B as the UP/DOWN
- direction control input, with B = 1 selecting UP Count
- mode and B = 0 selecting Down Count mode.
- Quadrature:
- Encoder A and B inputs are digitally filtered and
- decoded for UP/DN clock.
- What: /sys/bus/iio/devices/iio:deviceX/in_countY_set_to_preset_on_index
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Whether to set channel Y counter with channel Y preset value
- when channel Y index input is active, or continuously count.
- Valid attribute values are boolean.
- What: /sys/bus/iio/devices/iio:deviceX/in_indexY_index_polarity
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Active level of channel Y index input; irrelevant in
- non-synchronous load mode.
- What: /sys/bus/iio/devices/iio:deviceX/in_indexY_synchronous_mode
- KernelVersion: 4.10
- Contact: linux-iio@vger.kernel.org
- Description:
- This interface is deprecated; please use the Counter subsystem.
- Configure channel Y counter for non-synchronous or synchronous
- load mode. Synchronous load mode cannot be selected in
- non-quadrature clock mode.
- Non-synchronous:
- A logic low level is the active level at this index
- input. The index function (as enabled via
- set_to_preset_on_index) is performed directly on the
- active level of the index input.
- Synchronous:
- Intended for interfacing with encoder Index output in
- quadrature clock mode. The active level is configured
- via index_polarity. The index function (as enabled via
- set_to_preset_on_index) is performed synchronously with
- the quadrature clock on the active level of the index
- input.
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