/* Optional functions */
- esp->dma_barrier = 0;
- esp->dma_drain = 0;
- esp->dma_invalidate = 0;
- esp->dma_irq_entry = 0;
- esp->dma_irq_exit = 0;
+ esp->dma_barrier = NULL;
+ esp->dma_drain = NULL;
+ esp->dma_invalidate = NULL;
+ esp->dma_irq_entry = NULL;
+ esp->dma_irq_exit = NULL;
esp->dma_led_on = dma_led_on;
esp->dma_led_off = dma_led_off;
- esp->dma_poll = 0;
- esp->dma_reset = 0;
+ esp->dma_poll = NULL;
+ esp->dma_reset = NULL;
/* Set the command buffer */