A partire dal 27 marzo 2025, ti consigliamo di utilizzare android-latest-release anziché aosp-main per compilare e contribuire ad AOSP. Per ulteriori informazioni, vedi Modifiche ad AOSP.
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Riferimento alla struttura context_hub_module_t
#include <
context_hub.h
>
Ogni modulo hardware deve avere una struttura di dati denominata HAL_MODULE_INFO_SYM e i campi di questa struttura di dati devono iniziare con
hw_module_t
followed by module specific information.
Definizione alla riga
391
del file
context_hub.h
.
Enumera tutti gli hub disponibili.L'elenco viene restituito in "list".
-
Ritorni
-
result : numero di hub nell'elenco o errore (negativo)
Questo metodo deve essere chiamato all'avvio del dispositivo.
Definizione alla riga
400
del file
context_hub.h
.
|
int(* send_message)(uint32_t hub_id, const struct
hub_message_t
*msg)
|
Inviare un messaggio a un hub
-
Ritorni
-
result : 0 se l'operazione è riuscita, codice di errore altrimenti
Definizione alla riga
413
del file
context_hub.h
.
Registra un callback per l'implementazione HAL per comunicare con il servizio Hub di contesto.
-
Ritorni
-
result : 0 se l'operazione è riuscita, codice di errore altrimenti
Definizione alla riga
407
del file
context_hub.h
.
La documentazione di questa struttura è stata generata dal seguente file:
I campioni di contenuti e codice in questa pagina sono soggetti alle licenze descritte nella Licenza per i contenuti. Java e OpenJDK sono marchi o marchi registrati di Oracle e/o delle sue società consociate.
Ultimo aggiornamento 2025-07-27 UTC.
[[["Facile da capire","easyToUnderstand","thumb-up"],["Il problema è stato risolto","solvedMyProblem","thumb-up"],["Altra","otherUp","thumb-up"]],[["Mancano le informazioni di cui ho bisogno","missingTheInformationINeed","thumb-down"],["Troppo complicato/troppi passaggi","tooComplicatedTooManySteps","thumb-down"],["Obsoleti","outOfDate","thumb-down"],["Problema di traduzione","translationIssue","thumb-down"],["Problema relativo a esempi/codice","samplesCodeIssue","thumb-down"],["Altra","otherDown","thumb-down"]],["Ultimo aggiornamento 2025-07-27 UTC."],[],[],null,["# Android Hardware Abstraction Layer: context_hub_module_t Struct Reference\n\ncontext_hub_module_t Struct Reference\n=====================================\n\n[Data Fields](#pub-attribs) \ncontext_hub_module_t Struct Reference \n\n`\n#include \u003c\n`[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)`\n\u003e\n`\n\n|----------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Data Fields ----------- ||\n| struct [hw_module_t](/reference/hal/structhw__module__t) | [common](/reference/hal/structcontext__hub__module__t#a71ea01183b3998cad6a2301a37a42fc7) |\n| ||\n| int(\\* | [get_hubs](/reference/hal/structcontext__hub__module__t#a460328b43bbf62fd021541b547ea05b7) )(struct [context_hub_module_t](/reference/hal/structcontext__hub__module__t) \\*module, const struct [context_hub_t](/reference/hal/structcontext__hub__t) \\*\\*list) |\n| ||\n| int(\\* | [subscribe_messages](/reference/hal/structcontext__hub__module__t#a5a4c5caaa184e7918c86c847dfd507ff) )(uint32_t hub_id, [context_hub_callback](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h) cbk, void \\*cookie) |\n| ||\n| int(\\* | [send_message](/reference/hal/structcontext__hub__module__t#a8ad344fdd7d209b19bff76be0fedca8a) )(uint32_t hub_id, const struct [hub_message_t](/reference/hal/structhub__message__t) \\*msg) |\n| ||\n\n\nDetailed Description\n--------------------\n\n\nEvery hardware module must have a data structure named HAL_MODULE_INFO_SYM and the fields of this data structure must begin with\n[hw_module_t](/reference/hal/structhw__module__t)\nfollowed by module specific information.\n\n\nDefinition at line\n[391](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\nof file\n[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\n.\n\nField Documentation\n-------------------\n\n\n|-----------------------------------------------------------------|\n| struct [hw_module_t](/reference/hal/structhw__module__t) common |\n\n\nDefinition at line\n[392](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\nof file\n[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\n.\n\n|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| int(\\* get_hubs)(struct [context_hub_module_t](/reference/hal/structcontext__hub__module__t) \\*module, const struct [context_hub_t](/reference/hal/structcontext__hub__t) \\*\\*list) |\n\n\nEnumerate all available hubs.The list is returned in \"list\".\n\n\nReturns\n:\n result : number of hubs in list or error (negative)\n\n\nThis method shall be called at device bootup.\n\n\nDefinition at line\n[400](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\nof file\n[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\n.\n\n|-----------------------------------------------------------------------------------------------------------------|\n| int(\\* send_message)(uint32_t hub_id, const struct [hub_message_t](/reference/hal/structhub__message__t) \\*msg) |\n\n\nSend a message to a hub\n\n\nReturns\n:\n result : 0 if successful, error code otherwise\n\n\nDefinition at line\n[413](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\nof file\n[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\n.\n\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| int(\\* subscribe_messages)(uint32_t hub_id, [context_hub_callback](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h) cbk, void \\*cookie) |\n\n\nRegisters a callback for the HAL implementation to communicate with the context hub service.\n\n\nReturns\n:\n result : 0 if successful, error code otherwise\n\n\nDefinition at line\n[407](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\nof file\n[context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)\n.\n\n*** ** * ** ***\n\nThe documentation for this struct was generated from the following file:\n\n- hardware/libhardware/include/hardware/ [context_hub.h](https://android.googlesource.com/platform/hardware/libhardware/+/master/include/hardware/context_hub.h)"]]
