drivers/media/dvb-frontends/cx24120.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/cx24120.h

File Facts

System
Linux kernel
Corpus path
drivers/media/dvb-frontends/cx24120.h
Extension
.h
Size
1161 bytes
Lines
49
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 cx24120_initial_mpeg_config {
	u8 x1;
	u8 x2;
	u8 x3;
};

struct cx24120_config {
	u8 i2c_addr;
	u32 xtal_khz;
	struct cx24120_initial_mpeg_config initial_mpeg_config;

	int (*request_firmware)(struct dvb_frontend *fe,
				const struct firmware **fw, char *name);

	/* max bytes I2C provider can write at once */
	u16 i2c_wr_max;
};

#if IS_REACHABLE(CONFIG_DVB_CX24120)
struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
				    struct i2c_adapter *i2c);
#else
static inline
struct dvb_frontend *cx24120_attach(const struct cx24120_config *config,
				    struct i2c_adapter *i2c)
{
	pr_warn("%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif

#endif /* CX24120_H */

Annotation

Implementation Notes