poll.c File Reference

Write one byte to the IEC bus. More...

#include <wdm.h>
#include "cbm_driver.h"
#include "i_iec.h"

Go to the source code of this file.

Functions
NTSTATUS	cbmiec_iec_poll (IN PDEVICE_EXTENSION Pdx, OUT PUCHAR Result)
	Polls the status of the lines on the IEC bus. More...

Detailed Description

Write one byte to the IEC bus.

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Author

Spiro Trikaliotis

Authors

Based on code from Michael Klein <michael(dot)klein(at)puffin(dot)lb(dot)shuttle(dot)de>

Definition in file poll.c.

Function Documentation

NTSTATUS cbmiec_iec_poll	(	IN PDEVICE_EXTENSION	Pdx,
		OUT PUCHAR	Result
	)

Polls the status of the lines on the IEC bus.

Parameters

Pdx	Pointer to the device extension.
Result	Pointer to a variable which will hold the value of the IEC bus

Returns

If the routine succeeds, it returns STATUS_SUCCESS. Otherwise, it returns one of the error status values.

Definition at line 39 of file poll.c.

References FUNC_ENTER, IEC_LINE_ATN, IEC_LINE_CLOCK, IEC_LINE_DATA, IEC_LINE_RESET, IN_PORT, PP_ATN_IN, PP_CLK_IN, PP_DATA_IN, PP_RESET_IN, and READ_PORT_UCHAR.

Referenced by cbm_execute_devicecontrol(), and cbmiec_iec_wait().