Specifications

• alt_dma_txchan_reg() on page 14-21
• alt_dma_txchan_send() on page 14-27
• alt_dma_txchan_space() on page 14-26
alt_dma_txchan_close()
Prototype
int alt_dma_txchan_close (alt_dma_txchan txchan)
Commonly Called By
C/C++ programs
Device drivers
Thread-safe
Yes.
Available from ISR
No.
Include
<sys/alt_dma.h>
Description
The alt_dma_txchan_close function notifies the system that the application has finished using the DMA
transmit channel, txchan. The current implementation always succeeds.
Return
The return value is zero on success and negative otherwise.
Related Information
• alt_dma_rxchan_close() on page 14-13
• alt_dma_rxchan_depth() on page 14-12
• alt_dma_rxchan_open() on page 14-15
• alt_dma_rxchan_prepare() on page 14-16
• alt_dma_rxchan_reg() on page 14-17
• alt_dma_txchan_ioctl() on page 14-19
• alt_dma_txchan_open() on page 14-20
• alt_dma_txchan_reg() on page 14-21
• alt_dma_txchan_send() on page 14-27
• alt_dma_txchan_space() on page 14-26
14-18
alt_dma_txchan_close()
NII5V2
2015.05.14
Altera Corporation
HAL API Reference
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