drivers/media/dvb-frontends/stv0297.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/stv0297.h

File Facts

System
Linux kernel
Corpus path
drivers/media/dvb-frontends/stv0297.h
Extension
.h
Size
1086 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.

Dependency Surface

Detected Declarations

Annotated Snippet

Driver for STV0297 demodulator

    Copyright (C) 2003-2004 Dennis Noermann <dennis.noermann@noernet.de>

*/

#ifndef STV0297_H
#define STV0297_H

#include <linux/dvb/frontend.h>
#include <media/dvb_frontend.h>

struct stv0297_config
{
	/* the demodulator's i2c address */
	u8 demod_address;

	/* inittab - array of pairs of values.
	* First of each pair is the register, second is the value.
	* List should be terminated with an 0xff, 0xff pair.
	*/
	u8* inittab;

	/* does the "inversion" need inverted? */
	u8 invert:1;

	/* set to 1 if the device requires an i2c STOP during reading */
	u8 stop_during_read:1;
};

#if IS_REACHABLE(CONFIG_DVB_STV0297)
extern struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
					   struct i2c_adapter* i2c);
#else
static inline struct dvb_frontend* stv0297_attach(const struct stv0297_config* config,
					   struct i2c_adapter* i2c)
{
	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
	return NULL;
}
#endif // CONFIG_DVB_STV0297

#endif // STV0297_H

Annotation

Implementation Notes