_ACEDCB Struct Reference
[TLC16C550, TLC16C550]

#include <dev/tlc16c550.h>

Collaboration diagram for _ACEDCB:

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Detailed Description

ACE device control block structure.

Data Fields
NUTDEVICE *	dev_next
	pointer to the next device, used if more devices share the same interrupt
u_long	dcb_rtimeout
	Read timeout.
u_long	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.
u_long	dcb_modeflags
	Mode flags.
u_char	dcb_rfifo
	Level of the fifo trigger, 0 if no fifo.
u_char	dcb_wfifo
	Free space in the output fifo since the last write operation.

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Field Documentation

HANDLE _ACEDCB::dcb_tx_rdy

Queue of threads waiting for output buffer empty. Threads are added to this queue when calling ACEAvrFlush().

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().

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