Intermec CN2B Manual de usuario descargar pdf (Pagina 178)

Chapter 7 — Programming

160 CN2B Mobile Computer User’s Manual

Parameters

lpInBuf Should be set to NULL.

nInBufSize Should be set to zero.

lpOutBuf Should be a pointer to the PROCESSOR_INFO structure. The

PROCESSOR_INFO structure stores information that describes

the CPU more descriptively.

typedef __PROCESSOR_INFO {

WORD wVersion; // Set to value 1

WCHAR szProcessorCore[40]; // “ARM\0”

WORD wCoreRevision; // 4

WCHAR szProcessorName[40]; // “PXA255\0”

WORD wProcessorRevision; // 0

WCHAR szCatalogNumber[100]; // 0

WCHAR szVendor[100]; // “Intel Corporation\0”

DWORD dwInstructionSet; // 0

DWORD dwClockSpeed; // 400

}

nOutBufSize Should be set to sizeof(PROCESSOR_INFO) in bytes.

lpBytesReturned Returns sizeof(PROCESSOR_INFO);

Return Values

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

May use GetLastError() to get the extended error value.

IOCTL_GET_CPU_ID

Returns Xscale processor ID.

Usage

#include “oemioctl.h”

Syntax

BOOL KernelIoControl( IOCTL_GET_CPU_ID,LPVOID lpInBuf,

DWORD nInBufSize,LPVOID lpOutBuf,DWORD nOutBufSize,LPDWORD

lpBytesReturned );

Parameters

lpInBuf Should point to a CPUIdInfo structure defined in OEMIO-

CTL.H.

lpInBufSize Should be sizeof(CPUIdInfo).

lpOutBuf Should be NULL.

nOutBufSize Should be set to 0.

lpBytesReturned Returns sizeof(PROCESSOR_INFO);

Return Values

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

May use GetLastError() to get the extended error value.

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Intermec CN2B Manual de usuario Pagina 178