userspace-api/gpio/chardev.rst

7 This is latest version (v2) of the character device API, as defined in
28 The API is based around two major objects, the :ref:`gpio-v2-chip` and the
29 :ref:`gpio-v2-line-request`.
31 .. _gpio-v2-chip:
43 Lines are requested from the chip using gpio-v2-get-line-ioctl.rst
58    Get Line <gpio-v2-get-line-ioctl>
60    Get Line Info <gpio-v2-get-lineinfo-ioctl>
61    Watch Line Info <gpio-v2-get-lineinfo-watch-ioctl>
63    Read Line Info Changed Events <gpio-v2-lineinfo-changed-read>
65 .. _gpio-v2-line-request:
70 Line requests are created by gpio-v2-get-line-ioctl.rst and provide
73 :c:type:`request.fd<gpio_v2_line_request>` by gpio-v2-get-line-ioctl.rst.
86    Get Line Values <gpio-v2-line-get-values-ioctl>
87    Set Line Values <gpio-v2-line-set-values-ioctl>
88    Read Line Edge Events <gpio-v2-line-event-read>
89    Reconfigure Lines <gpio-v2-line-set-config-ioctl>
94 This section contains the structs and enums that are referenced by the API v2,