Intermec 751G user manual Ioctlhalgetbootdevice, Sample

Chapter 3 — Configuring the Computer

Return Values

Returns TRUE if function succeeds. Returns FALSE if the function fails.

GetLastError() may be used to get the extended error value.

Sample

typedef struct {

DWORD ResetReason;// most recent reset type DWORD ObjectStoreState;// state of object store } HAL_RESET_INFO, * PHAL_RESET_INFO;

// Reset reason types

#define HAL_RESET_TYPE_UNKNOWN0

#define HAL_RESET_REASON_HARDWARE1// cold #define HAL_RESET_REASON_SOFTWARE2// suspend #define HAL_RESET_REASON_WATCHDOG4

#define HAL_RESET_BATT_FAULT8// power fail #define HAL_RESET_VDD_FAULT16// warm boot

// Object store state flags

#define HAL_OBJECT_STORE_STATE_UNKNOWN0 #define HAL_OBJECT_STORE_STATE_CLEAR1

IOCTL_HAL_GET_BOOT_DEVICE

This IOCTL code allows software to check which device CE booted from.

Usage

#include “oemioctl.h”

Syntax

BOOL KernelIoControl( IOCTL_HAL_GET_BOOT_DEVICE,LPVOID lpInBuf,DWORD nInBufSize,LPVOID lpOutBuf,DWORD nOutBufSize,LPDWORD lpBytesReturned );

Parameters

lpInBuf	Should be set to NULL.
lpInBufSize	Should be set to zero.
lpOutBuf	Must point to a buffer large enough to hold a DWORD (4 bytes)
	with the boot device. The following boot devices are supported:
	#define HAL_BOOT_DEVICE_UNKNOWN0
	#define HAL_BOOT_DEVICE_ROM_XIP 1
	#define HAL_BOOT_DEVICE_ROM 2
	#define HAL_BOOT_DEVICE_PCMCIA_ATA 3
	#define HAL_BOOT_DEVICE_PCMCIA_LINEAR 4
	#define HAL_BOOT_DEVICE_IDE_ATA 5
	#define HAL_BOOT_DEVICE_IDE_ATAPI 6
nOutBufSize	The size of lpOutBuf in bytes (4).
lpBytesReturned	The number of bytes returned by the function.

Return Values

Returns TRUE if function succeeds. Returns FALSE if the function fails.

GetLastError() may be used to get the extended error value.

751G Color Mobile Computer User’s Manual 75