drivers/media/usb/pvrusb2/pvrusb2-dvb.h

File Facts

System

Linux kernel

Corpus path

drivers/media/usb/pvrusb2/pvrusb2-dvb.h

Extension

.h

Size

1033 bytes

Lines

46

Domain

Driver Families

Bucket

drivers/media

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.

• 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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• media/dvb_frontend.h
• media/dvb_demux.h
• media/dvb_net.h
• media/dmxdev.h
• pvrusb2-context.h

Detected Declarations

• struct pvr2_dvb_adapter
• struct pvr2_dvb_props

Annotated Snippet

struct pvr2_dvb_adapter {
	struct pvr2_channel	channel;

	struct dvb_adapter	dvb_adap;
	struct dmxdev		dmxdev;
	struct dvb_demux	demux;
	struct dvb_net		dvb_net;
	struct dvb_frontend	*fe[2];

	struct i2c_client	*i2c_client_demod[2];
	struct i2c_client	*i2c_client_tuner;

	int			feedcount;
	int			max_feed_count;

	struct task_struct	*thread;
	struct mutex		lock;

	unsigned int		stream_run:1;

	wait_queue_head_t	buffer_wait_data;
	char			*buffer_storage[PVR2_DVB_BUFFER_COUNT];
};

struct pvr2_dvb_props {
	int (*frontend_attach) (struct pvr2_dvb_adapter *);
	int (*tuner_attach) (struct pvr2_dvb_adapter *);
};

struct pvr2_dvb_adapter *pvr2_dvb_create(struct pvr2_context *pvr);

#endif /* __PVRUSB2_DVB_H__ */

Annotation

• Immediate include surface: `media/dvb_frontend.h`, `media/dvb_demux.h`, `media/dvb_net.h`, `media/dmxdev.h`, `pvrusb2-context.h`.
• Detected declarations: `struct pvr2_dvb_adapter`, `struct pvr2_dvb_props`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.