opaque
[Device proxies]
Collaboration diagram for opaque:
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Detailed Description
The opaque proxy provides an interface for generic messages to drivers.See examples/plugins/opaquedriver for an example of using this interface in combination with a custom plugin.
Classes | |
| struct | playerc_opaque_t |
| Opaque device data. More... | |
Functions | |
| playerc_opaque_t * | playerc_opaque_create (playerc_client_t *client, int index) |
| Create an opaque device proxy. | |
| void | playerc_opaque_destroy (playerc_opaque_t *device) |
| Destroy an opaque device proxy. | |
| int | playerc_opaque_subscribe (playerc_opaque_t *device, int access) |
| Subscribe to the opaque device. | |
| int | playerc_opaque_unsubscribe (playerc_opaque_t *device) |
| Un-subscribe from the opaque device. | |
| int | playerc_opaque_cmd (playerc_opaque_t *device, player_opaque_data_t *data) |
| Send a generic command. | |
| int | playerc_opaque_req (playerc_opaque_t *device, player_opaque_data_t *request, player_opaque_data_t **reply) |
| Send a generic request. | |
Function Documentation
| int playerc_opaque_req | ( | playerc_opaque_t * | device, | |
| player_opaque_data_t * | request, | |||
| player_opaque_data_t ** | reply | |||
| ) |
Send a generic request.
If a non null value is passed for reply memory for the response will be allocated and its pointer stored in reply. The caller is responsible for freeing this memory
If an error is returned no memory will have been allocated