Lines Matching +full:clock +full:- +full:falling +full:- +full:edge

1 .. SPDX-License-Identifier: GPL-2.0
11     gpio-v2-line-event-read.rst.
16 GPIO_LINEEVENT_DATA_READ - Read edge detection events from a line event.
28     :c:type:`request.fd<gpioevent_request>` by gpio-get-lineevent-ioctl.rst.
40 Read edge detection events for a line from a line event.
42 Edge detection must be enabled for the input line using either
44 both. Edge events are then generated whenever edge interrupts are detected on
48 to active transition is a rising edge.  If ``GPIOHANDLE_REQUEST_ACTIVE_LOW`` is
50 ``GPIOEVENT_REQUEST_RISING_EDGE`` then corresponds to a falling physical edge.
52 The kernel captures and timestamps edge events as close as possible to their
56 The source of the clock for :c:type:`event.timestamp<gpioevent_data>` is
59 as to which clock source is used, it must be determined from either the kernel
88 On error -1 and the ``errno`` variable is set appropriately.
89 Common error codes are described in error-codes.rst.