drivers/media/dvb-frontends/helene.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/helene.h

File Facts

System
Linux kernel
Corpus path
drivers/media/dvb-frontends/helene.h
Extension
.h
Size
2469 bytes
Lines
89
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct helene_config {
	u8	i2c_address;
	u8	xtal_freq_mhz;
	void	*set_tuner_priv;
	int	(*set_tuner_callback)(void *, int);
	enum helene_xtal xtal;

	struct dvb_frontend *fe;
};

#if IS_REACHABLE(CONFIG_DVB_HELENE)
/**
 * helene_attach - Attach a helene tuner (terrestrial and cable standards)
 *
 * @fe: frontend to be attached
 * @config: pointer to &struct helene_config with tuner configuration.
 * @i2c: i2c adapter to use.
 *
 * return: FE pointer on success, NULL on failure.
 */
extern struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
					const struct helene_config *config,
					struct i2c_adapter *i2c);

/**
 * helene_attach_s - Attach a helene tuner (satellite standards)
 *
 * @fe: frontend to be attached
 * @config: pointer to &struct helene_config with tuner configuration.
 * @i2c: i2c adapter to use.
 *
 * return: FE pointer on success, NULL on failure.
 */
extern struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
					const struct helene_config *config,
					struct i2c_adapter *i2c);
#else
static inline struct dvb_frontend *helene_attach(struct dvb_frontend *fe,
					const struct helene_config *config,
					struct i2c_adapter *i2c)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
static inline struct dvb_frontend *helene_attach_s(struct dvb_frontend *fe,
					const struct helene_config *config,
					struct i2c_adapter *i2c)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif

Annotation

Implementation Notes