Lines Matching +full:in +full:- +full:line

1 .. SPDX-License-Identifier: GPL-2.0
11     gpio-v2-get-line-ioctl.rst.
16 GPIO_GET_LINEEVENT_IOCTL - Request a line with edge detection from the kernel.
32     The :c:type:`event_request<gpioevent_request>` specifying the line
38 Request a line with edge detection from the kernel.
40 On success, the requesting process is granted exclusive access to the line
41 value and may receive events when edges are detected on the line, as
42 described in gpio-lineevent-data-read.rst.
44 The state of a line is guaranteed to remain as requested until the returned
46 the line becomes uncontrolled from the userspace perspective, and may revert
49 Requesting a line already in use is an error (**EBUSY**).
51 Requesting edge detection on a line that does not support interrupts is an
54 As with the :ref:`line handle<gpio-get-linehandle-config-support>`, the
57 Closing the ``chip_fd`` has no effect on existing line events.
60 -------------------
64 The line event is requested as an input, so no flags specific to output lines,
83 On error -1 and the ``errno`` variable is set appropriately.
84 Common error codes are described in error-codes.rst.