SAA7134_I2C_ATTR_STATUS
saa_andorb(SAA7134_I2C_ATTR_STATUS,0xc0,attr << 6);
dword = saa_readl(SAA7134_I2C_ATTR_STATUS >> 2);
saa_writel(SAA7134_I2C_ATTR_STATUS >> 2, dword);
status = saa_readb(SAA7134_I2C_ATTR_STATUS) & 0x0f;
saa_andorb(SAA7134_I2C_ATTR_STATUS,0x0f,status);