_ACEDCB Struct Reference

ACE device control block structure. More...

#include <dev/tlc16c550.h>

Collaboration diagram for _ACEDCB:

Data Fields
NUTDEVICE *	dev_next
	pointer to the next device, used if more devices share the same interrupt
uint32_t	dcb_rtimeout
	Read timeout.
uint32_t	dcb_wtimeout
	Write timeout.
HANDLE	dcb_tx_rdy
	Queue of threads waiting for output buffer empty.
HANDLE	dcb_rx_rdy
	Queue of threads waiting for a character in the input buffer.
uint32_t	dcb_modeflags
	Mode flags.
uint8_t	dcb_rfifo
	Level of the fifo trigger, 0 if no fifo.
uint8_t	dcb_wfifo
	Free space in the output fifo since the last write operation.

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Detailed Description

ACE device control block structure.

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Field Documentation

NUTDEVICE* _ACEDCB::dev_next

pointer to the next device, used if more devices share the same interrupt

Referenced by AceInit().

uint32_t _ACEDCB::dcb_rtimeout

Read timeout.

Referenced by AceInput(), and AceIOCtl().

uint32_t _ACEDCB::dcb_wtimeout

Write timeout.

Referenced by AceIOCtl().

HANDLE _ACEDCB::dcb_tx_rdy

Queue of threads waiting for output buffer empty.

Threads are added to this queue when calling ACEAvrFlush().

Referenced by AceFlush(), and AceIOCtl().

HANDLE _ACEDCB::dcb_rx_rdy

Queue of threads waiting for a character in the input buffer.

Threads are added to this queue when calling ACEAvrInput().

Referenced by AceInput().

uint32_t _ACEDCB::dcb_modeflags

Mode flags.

Referenced by AceInit(), AceIOCtl(), AceOpen(), AceOutput(), AcePut(), and AceRead().

uint8_t _ACEDCB::dcb_rfifo

Level of the fifo trigger, 0 if no fifo.

Referenced by AceInit(), and AceIOCtl().

uint8_t _ACEDCB::dcb_wfifo

Free space in the output fifo since the last write operation.

Referenced by AceInit(), AceIOCtl(), and AceOutput().

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The documentation for this struct was generated from the following file:

• include/dev/tlc16c550.h