bttv-i2c.c File Reference

#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include "bttvp.h"
#include <media/v4l2-common.h>
#include <linux/jiffies.h>
#include <asm/io.h>

Go to the source code of this file.

Macros
#define	pr_fmt(fmt)   KBUILD_MODNAME ": " fmt
#define	I2C_HW

Functions
	module_param (i2c_debug, int, 0644)
	MODULE_PARM_DESC (i2c_debug,"configure i2c debug level")
	module_param (i2c_hw, int, 0444)
	MODULE_PARM_DESC (i2c_hw,"force use of hardware i2c support, ""instead of software bitbang")
	module_param (i2c_scan, int, 0444)
	MODULE_PARM_DESC (i2c_scan,"scan i2c bus at insmod time")
	module_param (i2c_udelay, int, 0444)
	MODULE_PARM_DESC (i2c_udelay,"soft i2c delay at insmod time, in usecs ""(should be 5 or higher). Lower value means higher bus speed.")
int	bttv_I2CRead (struct bttv *btv, unsigned char addr, char *probe_for)
int	bttv_I2CWrite (struct bttv *btv, unsigned char addr, unsigned char b1, unsigned char b2, int both)
void __devinit	bttv_readee (struct bttv *btv, unsigned char *eedata, int addr)
int __devinit	init_bttv_i2c (struct bttv *btv)

Macro Definition Documentation

#define I2C_HW

Value:

(BT878_I2C_MODE  | BT848_I2C_SYNC |\
        BT848_I2C_SCL | BT848_I2C_SDA)

Definition at line 135 of file bttv-i2c.c.

#define pr_fmt

(

fmt

)

KBUILD_MODNAME ": " fmt

Definition at line 30 of file bttv-i2c.c.

Function Documentation

int bttv_I2CRead	(	struct bttv *	btv,
		unsigned char	addr,
		char *	probe_for
	)

Definition at line 273 of file bttv-i2c.c.

int bttv_I2CWrite	(	struct bttv *	btv,
		unsigned char	addr,
		unsigned char	b1,
		unsigned char	b2,
		int	both
	)

Definition at line 298 of file bttv-i2c.c.

void __devinit bttv_readee	(	struct bttv *	btv,
		unsigned char *	eedata,
		int	addr
	)

Definition at line 315 of file bttv-i2c.c.

int __devinit init_bttv_i2c

(

struct bttv *

btv

)

Definition at line 350 of file bttv-i2c.c.

module_param	(	i2c_debug	,
		int	,
		0644
	)

module_param	(	i2c_hw	,
		int	,
		0444
	)

module_param	(	i2c_scan	,
		int	,
		0444
	)

module_param	(	i2c_udelay	,
		int	,
		0444
	)

MODULE_PARM_DESC	(	i2c_debug	,
		"configure i2c debug level"
	)

MODULE_PARM_DESC	(	i2c_hw	,
		"force use of hardware i2c	support,
		""instead of software bitbang"
	)

MODULE_PARM_DESC	(	i2c_scan	,
		"scan i2c bus at insmod time"
	)

MODULE_PARM_DESC	(	i2c_udelay	,
		"soft i2c delay at insmod	time,
		in usecs""(should be 5 or higher).Lower value means higher bus speed."
	)