Exemple #1
0
void usart_debug_init(const struct UsartConfig * config)
{
    /* Set up circular buffer for rx */
    circularBufferInit(&rxcb, usart_debug_buffer, sizeof(usart_debug_buffer) / sizeof(char));
    configure_usart(config);
    configure_usart_callbacks();
}
Exemple #2
0
static int charDriver_open(struct inode *inode, struct file *flip)
{
  charDriverDev *dev;

  dev = container_of(inode->i_cdev, charDriverDev, cdev);
  flip->private_data = dev;

  if(down_interruptible(&dev->SemBuf))
    return -ERESTARTSYS;
  myBuffer = circularBufferInit(CIRCULAR_BUFFER_SIZE);

  up(&dev->SemBuf);

  printk(KERN_ALERT "charDriver is open\n");
  return 0;
}