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

File Facts

System

Linux kernel

Corpus path

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

Extension

.h

Size

2208 bytes

Lines

55

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

• dvb-usb.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _DVB_USB_COMMON_H_
#define _DVB_USB_COMMON_H_

#define DVB_USB_LOG_PREFIX "dvb-usb"
#include "dvb-usb.h"

extern int dvb_usb_debug;
extern int dvb_usb_disable_rc_polling;

#define deb_info(args...)  dprintk(dvb_usb_debug,0x001,args)
#define deb_xfer(args...)  dprintk(dvb_usb_debug,0x002,args)
#define deb_pll(args...)   dprintk(dvb_usb_debug,0x004,args)
#define deb_ts(args...)    dprintk(dvb_usb_debug,0x008,args)
#define deb_err(args...)   dprintk(dvb_usb_debug,0x010,args)
#define deb_rc(args...)    dprintk(dvb_usb_debug,0x020,args)
#define deb_fw(args...)    dprintk(dvb_usb_debug,0x040,args)
#define deb_mem(args...)   dprintk(dvb_usb_debug,0x080,args)
#define deb_uxfer(args...) dprintk(dvb_usb_debug,0x100,args)

/* commonly used  methods */
int dvb_usb_download_firmware(struct usb_device *udev,
			      const struct dvb_usb_device_properties *props);

extern int dvb_usb_device_power_ctrl(struct dvb_usb_device *d, int onoff);

extern int usb_urb_init(struct usb_data_stream *stream, struct usb_data_stream_properties *props);
extern int usb_urb_exit(struct usb_data_stream *stream);
extern int usb_urb_submit(struct usb_data_stream *stream);
extern int usb_urb_kill(struct usb_data_stream *stream);

extern int dvb_usb_adapter_stream_init(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_stream_exit(struct dvb_usb_adapter *adap);

extern int dvb_usb_i2c_init(struct dvb_usb_device *);
extern int dvb_usb_i2c_exit(struct dvb_usb_device *);

extern int dvb_usb_adapter_dvb_init(struct dvb_usb_adapter *adap,
				    short *adapter_nums);
extern int dvb_usb_adapter_dvb_exit(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_frontend_init(struct dvb_usb_adapter *adap);
extern int dvb_usb_adapter_frontend_exit(struct dvb_usb_adapter *adap);

extern int dvb_usb_remote_init(struct dvb_usb_device *);
extern int dvb_usb_remote_exit(struct dvb_usb_device *);

#endif

Annotation

• Immediate include surface: `dvb-usb.h`.
• 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.