#include?
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#ifdef?CONFIG_OF_GPIO
#include?
#endif
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#define?DRIVER_NAME?	“mlx90640“
#define?MLX90640_IOCTL_MAGIC			‘m‘
#define?MLX90640_GET_DATA	_IOR（MLX90640_IOCTL_MAGIC?1?int?*）
#define?MLX90640_SET_DATA	_IOR（MLX90640_IOCTL_MAGIC?2?int?*）


struct?mlx90640_chip?{
	struct?mutex?i2c_lock;
	struct?i2c_client?*client;
	const?char?*const?*names;
};

struct?MLX90640_R_DATA{
	uint16_t?reg;
	uint16_t?size;
	uint16_t?buff[1664];
};

struct?MLX90640_W_DATA{
	uint16_t?reg;
	uint16_t?size;
	uint16_t?data;
};

struct?mlx90640_chip?*gchip?=?NULL;

static?int?mlx90640_open（struct?inode?*inode?struct?file?*filp）
{
	return?0;
}

int?mlx90640_release（struct?inode?*inode?struct?file?*filp）
{
	return?0;?
}

static?int?i2c_master_recv_（struct?i2c_client?*clientchar?*msgbufuint16_t?*datauint16_t?nMemAdddressRead）
{
	struct?i2c_msg?msgs[2];
	struct?i2c_adapter?*adap?=?client->adapter;
	int?ret;
	uint16_t?bytesRemaining?=?nMemAdddressRead?*?2;
	int?cnt?=?0;
	int?i?=?0;
	uint16_t?*p?=?data;
	char?i2cData[1664];

	msgs[0].addr?=?client->addr;
	msgs[0].flags?=?I2C_M_TEN;	/*?write?*/
	msgs[0].len?=?2;
	msgs[0].buf?=?msgbuf;

	msgs[1].addr?=?client->addr;
	msgs[1].flags?=?I2C_M_RD?|?I2C_M_NOSTART;
	msgs[1].len?=?bytesRemaining;
	msgs[1].buf?=?i2cData;

	memset（i2cData0bytesRemaining）;
	ret?=?i2c_transfer（adap&msgs2）;
	for（cnt?=?0;cnt?		i?=?cnt?<		*p++?=?（（uint16_t）i2cData[i]?<	}
	return?0;
}

static?int?mlx90640_write_data（struct?i2c_client?*clientuint16_t?reguint16_t?buf）
{
	int?ret?=?0;
	u8?abuf[4];
	abuf[0]?=?reg?>>?8;
	abuf[1]?=?reg;	
	abuf[2]?=?buf?>>?8;
	abuf[3]?=?buf;	
	ret?=?i2c_master_send（clientabuf4）;
	return?ret;
}

static?int?mlx90640_read_data（struct?i2c_client?*clientuint16_t?reguint16_t?*datauint16_t?nMemAdddressRead）
{
	int?rc;
	u8?msgbuf[2];
	msgbuf[0]?=?reg?>>?8;
	msgbuf[1]?=?reg;
	rc?=?i2c_master_recv_（clientmsgbufdatanMemAdddressRead）;
	return?0;
}

static?long?mlx90640_ioctl（struct?file?*file?unsigned?int?cmdunsigned?long?arg）
{
	struct?MLX90640_R_DATA?data;
	struct?MLX90640_W_DATA?w_data;
	mutex_lock（&gchip->i2c_lock）;
	switch（cmd）{
		case?MLX90640_GET_DATA:
			if（copy_from_user（（void*）&da

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????6296??2020-02-22?17:28??mlx90640_code\mlx90640-i2c.c
?????文件????????8845??2020-02-22?17:28??mlx90640_code\mlx90640.zip
?????文件?????????344??2020-02-22?17:31??mlx90640_code\readme.txt
?????目錄???????????0??2020-02-22?17:29??mlx90640_code\