Lines Matching +full:single +full:- +full:core

1 .. SPDX-License-Identifier: GPL-2.0
23 counter devices consist of a core set of components. This core set of
27 There are three core components to a counter:
39 ------
57 -------
68   Signal does not trigger the count function. In Pulse-Direction count
91 -----
106 * Pulse-Direction:
114   - x1 A:
120   - x1 B:
126   - x2 A:
130   - x2 B:
134   - x4:
143 The most basic counter device may be expressed as a single Count
144 associated with a single Signal via a single Synapse. Take for example
149                 -----                -------        ------
150         +---------------------+
152         | Function: Increase  |  <-------------   / Source \
154         +---------------------+
160 specified by the Synapse -- in this case a rising edge condition on the
166 A counter device is not limited to a single Signal; in fact, in theory
167 many Signals may be associated with even a single Count. For example, a
172                    -----                 -------     ------
173         +-------------------------+
175         | Function: Quadrature x4 |  <------------   / A \
179         |                         |  <------------   / B \
181         +-------------------------+
184 associated with a single Count: a rising or falling edge on either A or
193 operating in a non-quadrature Pulse-Direction mode could have one input
198                    -----                   -------      ------
199         +---------------------------+
201         | Function: Pulse-Direction |  <-------------   / A \ (Movement)
205         |                           |  <-------------   / B \ (Direction)
207         +---------------------------+
209 Only Signal A triggers the "Pulse-Direction" update function, but the
216 availability for state evaluation despite its non-triggering mode.
222 whether an input line is differential or single-ended) and instead focus
223 on the core idea of what the data and process represent (e.g. position
232 Documentation/ABI/testing/sysfs-bus-counter for detailed
244 provides several core data structures, function prototypes, and macros
247 .. kernel-doc:: include/linux/counter.h
250 .. kernel-doc:: drivers/counter/counter.c
280 if device memory-managed registration is desired.
309   non-specific to a particular Count or Signal. This is where you would
350 Documentation/ABI/testing/sysfs-bus-counter file.