drivers/media/dvb-frontends/lgs8gxx.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/lgs8gxx.h

File Facts

System
Linux kernel
Corpus path
drivers/media/dvb-frontends/lgs8gxx.h
Extension
.h
Size
1919 bytes
Lines
81
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 lgs8gxx_config {

	/* product type */
	u8 prod;

	/* the demodulator's i2c address */
	u8 demod_address;

	/* parallel or serial transport stream */
	u8 serial_ts;

	/* transport stream polarity*/
	u8 ts_clk_pol;

	/* transport stream clock gated by ts_valid */
	u8 ts_clk_gated;

	/* A/D Clock frequency */
	u32 if_clk_freq; /* in kHz */

	/* IF frequency */
	u32 if_freq; /* in kHz */

	/*Use External ADC*/
	u8 ext_adc;

	/*External ADC output two's complement*/
	u8 adc_signed;

	/*Sample IF data at falling edge of IF_CLK*/
	u8 if_neg_edge;

	/*IF use Negative center frequency*/
	u8 if_neg_center;

	/*8G75 internal ADC input range selection*/
	/*0: 0.8Vpp, 1: 1.0Vpp, 2: 1.6Vpp, 3: 2.0Vpp*/
	u8 adc_vpp;

	/* slave address and configuration of the tuner */
	u8 tuner_address;
};

#if IS_REACHABLE(CONFIG_DVB_LGS8GXX)
extern struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
					   struct i2c_adapter *i2c);
#else
static inline
struct dvb_frontend *lgs8gxx_attach(const struct lgs8gxx_config *config,
				    struct i2c_adapter *i2c) {
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif /* CONFIG_DVB_LGS8GXX */

#endif /* __LGS8GXX_H__ */

Annotation

Implementation Notes