mirror of
https://github.com/zephyrproject-rtos/zephyr
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e18fcbba5a
Now that device_api attribute is unmodified at runtime, as well as all the other attributes, it is possible to switch all device driver instance to be constant. A coccinelle rule is used for this: @r_const_dev_1 disable optional_qualifier @ @@ -struct device * +const struct device * @r_const_dev_2 disable optional_qualifier @ @@ -struct device * const +const struct device * Fixes #27399 Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com> |
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| .. | ||
| boards | ||
| dts/bindings | ||
| src | ||
| CMakeLists.txt | ||
| Kconfig | ||
| prj_mec1501modular_assy6885.conf | ||
| prj.conf | ||
| README.rst | ||
| sample.yaml | ||
.. _espi-sample:
Enhanced Serial Peripheral Interface
####################################
Overview
********
This sample demonstrates how to use the Enhanced Serial Peripheral Interface
(eSPI) API.
It shows how to configure and select eSPI controller capabilities as part of
a simple eSPI handshake that includes exchanging virtual wire packets.
Standard platform signals are sent virtual wire packets over the bus.
Callbacks are registered that will write to the console indicating main
eSPI events and when a virtual wire is received.
Building and Running
********************
The sample can be built and executed on boards supporting eSPI.
Any pins required for minimum eSPI handshake should be configured.
Sample output
=============
.. code-block:: console
Hello eSPI test!
eSPI test - I/O initialization...complete
eSPI slave configured successfully!
eSPI test - callbacks initialization... complete
eSPI test - callbacks registration... complete
eSPI test - Power initialization...complete
eSPI test - Handshake
eSPI BUS reset 0
VW channel is ready
PLT_RST changed 1
1st phase completed
2nd phase completed
3rd phase completed
note:: The values shown above might differ.