ecc標量乘法python,多標量乘法

本文目錄一覽：

• 1、安裝Python出現問題Error 0x80070643: Failed to install MSI package.
• 2、請教python中調用DeviceIoControl的一個問題

安裝Python出現問題Error 0x80070643: Failed to install MSI package.

兄弟  問題解決了嘛  我也遇到這個問題了  把之前安裝的其它相機驅動都卸載了  還是不能安裝成功

請教python中調用DeviceIoControl的一個問題

代碼如下

##from winioctlcon import *

##from win32file import *

from ctypes import *

from ctypes.wintypes import *

import win32api

import win32file

import winioctlcon

import win32con

IDE_ATA_IDENTIFY = 0xEC

DFP_SEND_DRIVE_COMMAND = 0x0007c084

class _IDEREGS(Structure):

_fields_=[

(“bFeaturesReg”,BYTE), ## 特徵寄存器(用於SMART命令)

(“bSectorCountReg”,BYTE), ## 扇區數目寄存器

(“bSectorNumberReg”,BYTE), ## 開始扇區寄存器

(“bCylLowReg”,BYTE), ## 開始柱面低位元組寄存器

(“bCylHighReg”,BYTE), ## 開始柱面高位元組寄存器

(“bDriveHeadReg”,BYTE), ## 驅動器/磁頭寄存器

(“bCommandReg”,BYTE), ## 指令寄存器

(“bReserved”,BYTE), ## 保留

]

IDEREGS = _IDEREGS #*PIDEREGS, *LPIDEREGS;

## 從驅動程序返回的狀態

class _DRIVERSTATUS(Structure):

_fields_=[

(“bDriverError”,BYTE), ## 錯誤碼

(“bIDEStatus”,BYTE), ## IDE狀態寄存器

(“bReserved”,BYTE*2), ## 保留

(“dwReserved”,DWORD*2), ## 保留

]

DRIVERSTATUS=_DRIVERSTATUS #*PDRIVERSTATUS, *LPDRIVERSTATUS;

## IDE設備IOCTL輸入數據結構

class _SENDCMDINPARAMS(Structure):

_fields_=[

(“cBufferSize”,DWORD), ## 緩衝區位元組數

(“irDriveRegs”,IDEREGS), ## IDE寄存器組

(“bDriveNumber”,BYTE), ## 驅動器號

(“bReserved”,BYTE*3), ## 保留

(“dwReserved”,DWORD*4), ## 保留

(“bBuffer[1]”,BYTE), ## 輸入緩衝區(此處象徵性地包含1位元組)

]

SENDCMDINPARAMS=_SENDCMDINPARAMS #*PSENDCMDINPARAMS, *LPSENDCMDINPARAMS;

## IDE設備IOCTL輸出數據結構

class _SENDCMDOUTPARAMS(Structure):

_fields_=[

(“cBufferSize”,DWORD), ## 緩衝區位元組數

(“DriverStatus”,DRIVERSTATUS), ## 驅動程序返回狀態

(“bBuffer[1]”,BYTE), ## 輸入緩衝區(此處象徵性地包含1位元組)

]

SENDCMDOUTPARAMS = _SENDCMDOUTPARAMS # *PSENDCMDOUTPARAMS, *LPSENDCMDOUTPARAMS;

## IDE的ID命令返回的數據

## 共512位元組(256個WORD)，這裡僅定義了一些感興趣的項(基本上依據ATA/ATAPI-4)

USHORT = c_ushort

CHAR = c_char

ULONG = c_ulong

UCHAR = c_ubyte

class Capabilities(Structure): ## WORD 49: 一般能力

_fields_=[

(“reserved1:8”,USHORT),

(“DMA:1”,USHORT), ## 1=支持DMA

(“LBA:1”,USHORT), ## 1=支持LBA

(“DisIORDY:1”,USHORT), ## 1=可不使用IORDY

(“IORDY:1”,USHORT), ## 1=支持IORDY

(“SoftReset:1”,USHORT), ## 1=需要ATA軟啟動

(“Overlap:1”,USHORT), ## 1=支持重疊操作

(“Queue:1”,USHORT), ## 1=支持命令隊列

(“InlDMA:1”,USHORT), ## 1=支持交叉存取DMA

]

class FieldValidity(Structure): ## WORD 53: 後續字段有效性標誌

_fields_=[

(“CHSNumber:1”,USHORT), ## 1=WORD 54-58有效

(“CycleNumber:1”,USHORT), ## 1=WORD 64-70有效

(“UnltraDMA:1”,USHORT), ## 1=WORD 88有效

(“reserved:13”,USHORT),

]

class MultSectorStuff(Structure): ## WORD 59: 多扇區讀寫設定

_fields_=[

(“CurNumber:8”,USHORT), ## 當前一次性可讀寫扇區數

(“Multi:1”,USHORT), ## 1=已選擇多扇區讀寫

(“reserved1:7”,USHORT),

]

class MultiWordDMA(Structure): ## WORD 63: 多位元組DMA支持能力

_fields_=[

(“Mode0:1”,USHORT), ## 1=支持模式0 (4.17Mb/s)

(“Mode1:1”,USHORT), ## 1=支持模式1 (13.3Mb/s)

(“Mode2:1”,USHORT), ## 1=支持模式2 (16.7Mb/s)

(“Reserved1:5”,USHORT),

(“Mode0Sel:1”,USHORT), ## 1=已選擇模式0

(“Mode1Sel:1”,USHORT), ## 1=已選擇模式1

(“Mode2Sel:1”,USHORT), ## 1=已選擇模式2

(“Reserved2:5”,USHORT),

]

class PIOCapacity(Structure): ## WORD 64: 高級PIO支持能力

_fields_=[

(“AdvPOIModes:8”,USHORT), ## 支持高級POI模式數

(“reserved:8”,USHORT),

]class MajorVersion(Structure): ## WORD 80: 主版本

_fields_=[

(“Reserved1:1”,USHORT),

(“ATA1:1”,USHORT), ## 1=支持ATA-1

(“ATA2:1”,USHORT), ## 1=支持ATA-2

(“ATA3:1”,USHORT), ## 1=支持ATA-3

(“ATA4:1”,USHORT), ## 1=支持ATA/ATAPI-4

(“ATA5:1”,USHORT), ## 1=支持ATA/ATAPI-5

(“ATA6:1”,USHORT), ## 1=支持ATA/ATAPI-6

(“ATA7:1”,USHORT), ## 1=支持ATA/ATAPI-7

(“ATA8:1”,USHORT), ## 1=支持ATA/ATAPI-8

(“ATA9:1”,USHORT), ## 1=支持ATA/ATAPI-9

(“ATA10:1”,USHORT), ## 1=支持ATA/ATAPI-10

(“ATA11:1”,USHORT), ## 1=支持ATA/ATAPI-11

(“ATA12:1”,USHORT), ## 1=支持ATA/ATAPI-12

(“ATA13:1”,USHORT), ## 1=支持ATA/ATAPI-13

(“ATA14:1”,USHORT), ## 1=支持ATA/ATAPI-14

(“Reserved2:1”,USHORT),

]

class UltraDMA(Structure): ## WORD 88: Ultra DMA支持能力

_fields_=[

(“Mode0:1”,USHORT), ## 1=支持模式0 (16.7Mb/s)

(“Mode1:1”,USHORT), ## 1=支持模式1 (25Mb/s)

(“Mode2:1”,USHORT), ## 1=支持模式2 (33Mb/s)

(“Mode3:1”,USHORT), ## 1=支持模式3 (44Mb/s)

(“Mode4:1”,USHORT), ## 1=支持模式4 (66Mb/s)

(“Mode5:1”,USHORT), ## 1=支持模式5 (100Mb/s)

(“Mode6:1”,USHORT), ## 1=支持模式6 (133Mb/s)

(“Mode7:1”,USHORT), ## 1=支持模式7 (166Mb/s) ???

(“Mode0Sel:1”,USHORT), ## 1=已選擇模式0

(“Mode1Sel:1”,USHORT), ## 1=已選擇模式1

(“Mode2Sel:1”,USHORT), ## 1=已選擇模式2

(“Mode3Sel:1”,USHORT), ## 1=已選擇模式3

(“Mode4Sel:1”,USHORT), ## 1=已選擇模式4

(“Mode5Sel:1”,USHORT), ## 1=已選擇模式5

(“Mode6Sel:1”,USHORT), ## 1=已選擇模式6

(“Mode7Sel:1”,USHORT), ## 1=已選擇模式7

]

class _IDINFO(Structure):

_fields_=[

(“wGenConfig”,USHORT), ## WORD 0: 基本信息字

(“wNumCyls”,USHORT), ## WORD 1: 柱面數

(“wReserved2”,USHORT), ## WORD 2: 保留

(“wNumHeads”,USHORT), ## WORD 3: 磁頭數

(“wReserved4”,USHORT), ## WORD 4: 保留

(“wReserved5”,USHORT), ## WORD 5: 保留

(“wNumSectorsPerTrack”,USHORT), ## WORD 6: 每磁道扇區數

(“wVendorUnique”,USHORT*3), ## WORD 7-9: 廠家設定值

(“sSerialNumber”,CHAR*20), ## WORD 20: 緩衝類型

(“wBufferSize”,USHORT), ## WORD 21: 緩衝大小

(“wECCSize”,USHORT), ## WORD 22: ECC校驗大小

(“sFirmwareRev”,CHAR*8), ## WORD 23-26: 固件版本

(“sModelNumber”,CHAR*40), ## WORD 27-46: 內部型號

(“wMoreVendorUnique”,USHORT), ## WORD 47: 廠家設定值

(“wReserved48”,USHORT), ## WORD 48: 保留

(“wCapabilities”,Capabilities),

(“wReserved1”,USHORT), ## WORD 50: 保留

(“wPIOTiming”,USHORT), ## WORD 51: PIO時序

(“wDMATiming”,USHORT), ## WORD 52: DMA時序

(“wFieldValidity”,FieldValidity),

(“wNumCurCyls”,USHORT), ## WORD 54: CHS可尋址的柱面數

(“wNumCurHeads”,USHORT), ## WORD 55: CHS可尋址的磁頭數

(“wNumCurSectorsPerTrack”,USHORT), ## WORD 56: CHS可尋址每磁道扇區數

(“wCurSectorsLow”,USHORT), ## WORD 57: CHS可尋址的扇區數低位字

(“wCurSectorsHigh”,USHORT), ## WORD 58: CHS可尋址的扇區數高位字

(“wMultSectorStuff”,MultSectorStuff),

(“dwTotalSectors”,ULONG), ## WORD 60-61: LBA可尋址的扇區數

(“wSingleWordDMA”,USHORT), ## WORD 62: 單位元組DMA支持能力

(“wMultiWordDMA”,MultiWordDMA),

(“wPIOCapacity”,PIOCapacity),

(“wMinMultiWordDMACycle”,USHORT), ## WORD 65: 多位元組DMA傳輸周期的最小值

(“wRecMultiWordDMACycle”,USHORT), ## WORD 66: 多位元組DMA傳輸周期的建議值

(“wMinPIONoFlowCycle”,USHORT), ## WORD 67: 無流控制時PIO傳輸周期的最小值

(“wMinPOIFlowCycle”,USHORT), ## WORD 68: 有流控制時PIO傳輸周期的最小值

(“wReserved69[11]”,USHORT), ## WORD 69-79: 保留

(“wMajorVersion”,MajorVersion),

(“wMinorVersion”,USHORT), ## WORD 81: 副版本

(“wReserved82”,USHORT*6), ## WORD 82-87: 保留

(“wUltraDMA”,UltraDMA),

(“wReserved89”,USHORT*167) # WORD 89-255

]

IDINFO = _IDINFO #*PIDINFO;

hDisk = win32file.CreateFile(‘\\\\.\\PhysicalDrive0’,

win32file.GENERIC_READ | win32file.GENERIC_WRITE,

win32file.FILE_SHARE_READ|win32file.FILE_SHARE_WRITE,

None,

win32file.OPEN_EXISTING,

0,

None)

print(hDisk)

pSCIP=SENDCMDINPARAMS()

pSCOP=SENDCMDOUTPARAMS()

#print(pSCIP)

pSCIP.irDriveRegs.bCommandReg = IDE_ATA_IDENTIFY

#print(pSCIP.irDriveRegs.bCommandReg)

pSCIP.cBufferSize = 0

#pSCIP=create_string_buffer(pSCIP)

pSCOP.cBufferSize=sizeof(IDINFO)

Total=pSCOP.cBufferSize + sizeof(pSCOP)

#print(pSCIP.irDriveRegs.bCommandReg)

#print(pSCIP)

#print(pSCOP)

#print(Total)

##IOCTL_DISK_GET_DRIVE_GEOMETRY=0x0007c084

##IOCTL_DISK_GET_MEDIA_TYPES = 0x70c00

info = win32file.DeviceIoControl(hDisk,

DFP_SEND_DRIVE_COMMAND,

pSCIP,

Total, #sizeof(SENDCMDOUTPARAMS) + sizeof(IDINFO) – 1,

None)

print(info)

win32file.CloseHandle(hDisk)