_DEVICE_EXTENSION Struct Reference

#include <cbm_driver.h>

Data Fields
	ARCH_DEVICE_EXTENSION
PUCHAR	ParPortPortAddress
ULONG	IrqCount
BOOLEAN	IsSMP
USHORT	IecCable
UCHAR	IecOutBits
UCHAR	IecOutEor
BOOLEAN	IecBusy
BOOLEAN	Eoi

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Detailed Description

The device extension for the device

Definition at line 89 of file cbm_driver.h.

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Field Documentation

_DEVICE_EXTENSION::ARCH_DEVICE_EXTENSION

the architecture specific stuff Definition at line 93 of file cbm_driver.h.

BOOLEAN _DEVICE_EXTENSION::Eoi

TRUE -> we received an EOI over the bus Definition at line 127 of file cbm_driver.h. Referenced by cbmiec_i_raw_write().

BOOLEAN _DEVICE_EXTENSION::IecBusy

Remember if this device is busy Definition at line 124 of file cbm_driver.h.

USHORT _DEVICE_EXTENSION::IecCable

>1 --> autodetect ==0 --> non-inverted (XM1541) =1 --> inverted (XA1541) Definition at line 115 of file cbm_driver.h.

UCHAR _DEVICE_EXTENSION::IecOutBits

The current state of the output bits of the parallel port Definition at line 118 of file cbm_driver.h.

UCHAR _DEVICE_EXTENSION::IecOutEor

EOR mask for outputting on the parallel port Definition at line 121 of file cbm_driver.h.

ULONG _DEVICE_EXTENSION::IrqCount

how many Irqs should we wait in cbmiec_interrupt (for cbmiec_wait_for_listener()? This determines if we want to schedule an EOI (=2) or not (=1). =0 means that the interrupt is not interesting for us. Definition at line 103 of file cbm_driver.h. Referenced by cbmiec_i_raw_write().

BOOLEAN _DEVICE_EXTENSION::IsSMP

FLAG: We are running on an SMP or an HT machine Definition at line 106 of file cbm_driver.h. Referenced by cbmiec_i_raw_write().

PUCHAR _DEVICE_EXTENSION::ParPortPortAddress

Start address of the parallel port in the I/O address space Definition at line 96 of file cbm_driver.h. Referenced by ParPortInit(), ParPortSetModeNt4(), and ParPortUnsetModeNt4().

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

• cbm_driver.h

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