C++ (Cpp) vfc_init_i2c_bus示例

示例#1

static int vfc_open(struct inode *inode, struct file *file) 
{
	struct vfc_dev *dev;

	spin_lock(&vfc_dev_lock);
	dev = vfc_get_dev_ptr(MINOR(inode->i_rdev));
	if (dev == NULL) {
		spin_unlock(&vfc_dev_lock);
		return -ENODEV;
	}
	if (dev->busy) {
		spin_unlock(&vfc_dev_lock);
		return -EBUSY;
	}

	dev->busy = 1;
	spin_unlock(&vfc_dev_lock);

	vfc_lock_device(dev);
	
	vfc_csr_init(dev);
	vfc_pcf8584_init(dev);
	vfc_init_i2c_bus(dev);
	vfc_saa9051_init(dev);
	vfc_memptr_reset(dev);
	vfc_captstat_reset(dev);
	
	vfc_unlock_device(dev);
	return 0;
}

示例#2

int init_vfc_hw(struct vfc_dev *dev) 
{
	vfc_lock_device(dev);
	vfc_csr_init(dev);

	vfc_pcf8584_init(dev);
	vfc_init_i2c_bus(dev); /* hopefully this doesn't undo the magic
				  sun code above*/
	vfc_saa9051_init(dev);
	vfc_unlock_device(dev);
	return 0; 
}

示例#3

文件： vfc_dev.c 项目： chinnyannieb/empeg-hijack

static int vfc_open(struct inode *inode, struct file *file) 
{
	struct vfc_dev *dev;
	dev=vfc_get_dev_ptr(MINOR(inode->i_rdev));
	if(!dev) return -ENODEV;
	if(dev->busy) return -EBUSY;
	dev->busy=1;
	MOD_INC_USE_COUNT;
	vfc_lock_device(dev);
	
	vfc_csr_init(dev);
	vfc_pcf8584_init(dev);
	vfc_init_i2c_bus(dev);
	vfc_saa9051_init(dev);
	vfc_memptr_reset(dev);
	vfc_captstat_reset(dev);
	
	vfc_unlock_device(dev);
	return 0;
}