drivers/media/dvb/frontends/drxk.h

#ifndef _DRXK_H_
#define _DRXK_H_

#include <linux/types.h>
#include <linux/i2c.h>

/**
 * struct drxk_config - Configure the initial parameters for DRX-K
 *
 * adr:			I2C Address of the DRX-K
 * single_master:	Device is on the single master mode
 * no_i2c_bridge:	Don't switch the I2C bridge to talk with tuner
 * antenna_gpio:	GPIO bit used to control the antenna
 * antenna_dvbt:	GPIO bit for changing antenna to DVB-C. A value of 1
 *			means that 1=DVBC, 0 = DVBT. Zero means the opposite.
 * microcode_name:	Name of the firmware file with the microcode
 *
 * On the *_gpio vars, bit 0 is UIO-1, bit 1 is UIO-2 and bit 2 is
 * UIO-3.
 */
struct drxk_config {
	u8	adr;
	bool	single_master;
	bool	no_i2c_bridge;

	bool	antenna_dvbt;
	u16	antenna_gpio;

	int    chunk_size;

	const char *microcode_name;
};

#if defined(CONFIG_DVB_DRXK) || (defined(CONFIG_DVB_DRXK_MODULE) \
        && defined(MODULE))
extern struct dvb_frontend *drxk_attach(const struct drxk_config *config,
					struct i2c_adapter *i2c,
					struct dvb_frontend **fe_t);
#else
static inline struct dvb_frontend *drxk_attach(const struct drxk_config *config,
					struct i2c_adapter *i2c,
					struct dvb_frontend **fe_t)
{
        printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
        return NULL;
}
#endif

#endif