Zephyr API Documentation 4.0.0
A Scalable Open Source RTOS
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RPMsg service API . More...
Functions | |
int | rpmsg_service_register_endpoint (const char *name, rpmsg_ept_cb cb) |
Register IPC endpoint. | |
int | rpmsg_service_send (int endpoint_id, const void *data, size_t len) |
Send data using given IPC endpoint. | |
bool | rpmsg_service_endpoint_is_bound (int endpoint_id) |
Check if endpoint is bound. | |
RPMsg service API .
bool rpmsg_service_endpoint_is_bound | ( | int | endpoint_id | ) |
#include <zephyr/ipc/rpmsg_service.h>
Check if endpoint is bound.
Checks if remote endpoint has been created and the master has bound its endpoint to it.
endpoint_id | Id of registered endpoint, obtained by rpmsg_service_register_endpoint |
true | endpoint is bound |
false | endpoint not bound |
int rpmsg_service_register_endpoint | ( | const char * | name, |
rpmsg_ept_cb | cb ) |
#include <zephyr/ipc/rpmsg_service.h>
Register IPC endpoint.
Registers IPC endpoint to enable communication with a remote device. The endpoint is created when the slave device registers it.
The same function registers endpoints for both master and slave devices.
name | String containing the name of the endpoint. Must be identical for master and slave |
cb | Callback executed when data are available on given endpoint |
>=0 | id of registered endpoint on success; |
-EINPROGRESS | when requested to register an endpoint after endpoints creation procedure has started; |
-ENOMEM | when there is not enough slots to register the endpoint; |
<0 | an other negative errno code, reported by rpmsg. |
int rpmsg_service_send | ( | int | endpoint_id, |
const void * | data, | ||
size_t | len ) |
#include <zephyr/ipc/rpmsg_service.h>
Send data using given IPC endpoint.
endpoint_id | Id of registered endpoint, obtained by rpmsg_service_register_endpoint |
data | Pointer to the buffer to send through RPMsg service |
len | Number of bytes to send. |
>=0 | number of sent bytes; |
<0 | an error code, reported by rpmsg. |