drivers/staging/greybus/audio_manager.h

Source file repositories/reference/linux-study-clean/drivers/staging/greybus/audio_manager.h

File Facts

System
Linux kernel
Corpus path
drivers/staging/greybus/audio_manager.h
Extension
.h
Size
1707 bytes
Lines
75
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct gb_audio_manager_module_descriptor {
	char name[GB_AUDIO_MANAGER_MODULE_NAME_LEN];
	int vid;
	int pid;
	int intf_id;
	unsigned int ip_devices;
	unsigned int op_devices;
};

struct gb_audio_manager_module {
	struct kobject kobj;
	struct list_head list;
	int id;
	struct gb_audio_manager_module_descriptor desc;
};

/*
 * Creates a new gb_audio_manager_module_descriptor, using the specified
 * descriptor.
 *
 * Returns a negative result on error, or the id of the newly created module.
 *
 */
int gb_audio_manager_add(struct gb_audio_manager_module_descriptor *desc);

/*
 * Removes a connected gb_audio_manager_module_descriptor for the specified ID.
 *
 * Returns zero on success, or a negative value on error.
 */
int gb_audio_manager_remove(int id);

/*
 * Removes all connected gb_audio_modules
 *
 * Returns zero on success, or a negative value on error.
 */
void gb_audio_manager_remove_all(void);

/*
 * Decreases the refcount of the module, obtained by the get function.
 * Modules are removed via gb_audio_manager_remove
 */
void gb_audio_manager_put_module(struct gb_audio_manager_module *module);

/*
 * Dumps the module for the specified id
 * Return 0 on success
 */
int gb_audio_manager_dump_module(int id);

/*
 * Dumps all connected modules
 */
void gb_audio_manager_dump_all(void);

#endif /* _GB_AUDIO_MANAGER_H_ */

Annotation

Implementation Notes