ecc标量乘法python,多标量乘法

本文目录一览：

• 1、安装Python出现问题Error 0x80070643: Failed to install MSI package.
• 2、请教python中调用DeviceIoControl的一个问题

安装Python出现问题Error 0x80070643: Failed to install MSI package.

兄弟  问题解决了嘛  我也遇到这个问题了  把之前安装的其它相机驱动都卸载了  还是不能安装成功

请教python中调用DeviceIoControl的一个问题

代码如下

##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), ## 特征寄存器(用于SMART命令)

(“bSectorCountReg”,BYTE), ## 扇区数目寄存器

(“bSectorNumberReg”,BYTE), ## 开始扇区寄存器

(“bCylLowReg”,BYTE), ## 开始柱面低字节寄存器

(“bCylHighReg”,BYTE), ## 开始柱面高字节寄存器

(“bDriveHeadReg”,BYTE), ## 驱动器/磁头寄存器

(“bCommandReg”,BYTE), ## 指令寄存器

(“bReserved”,BYTE), ## 保留

]

IDEREGS = _IDEREGS #*PIDEREGS, *LPIDEREGS;

## 从驱动程序返回的状态

class _DRIVERSTATUS(Structure):

_fields_=[

(“bDriverError”,BYTE), ## 错误码

(“bIDEStatus”,BYTE), ## IDE状态寄存器

(“bReserved”,BYTE*2), ## 保留

(“dwReserved”,DWORD*2), ## 保留

]

DRIVERSTATUS=_DRIVERSTATUS #*PDRIVERSTATUS, *LPDRIVERSTATUS;

## IDE设备IOCTL输入数据结构

class _SENDCMDINPARAMS(Structure):

_fields_=[

(“cBufferSize”,DWORD), ## 缓冲区字节数

(“irDriveRegs”,IDEREGS), ## IDE寄存器组

(“bDriveNumber”,BYTE), ## 驱动器号

(“bReserved”,BYTE*3), ## 保留

(“dwReserved”,DWORD*4), ## 保留

(“bBuffer[1]”,BYTE), ## 输入缓冲区(此处象征性地包含1字节)

]

SENDCMDINPARAMS=_SENDCMDINPARAMS #*PSENDCMDINPARAMS, *LPSENDCMDINPARAMS;

## IDE设备IOCTL输出数据结构

class _SENDCMDOUTPARAMS(Structure):

_fields_=[

(“cBufferSize”,DWORD), ## 缓冲区字节数

(“DriverStatus”,DRIVERSTATUS), ## 驱动程序返回状态

(“bBuffer[1]”,BYTE), ## 输入缓冲区(此处象征性地包含1字节)

]

SENDCMDOUTPARAMS = _SENDCMDOUTPARAMS # *PSENDCMDOUTPARAMS, *LPSENDCMDOUTPARAMS;

## IDE的ID命令返回的数据

## 共512字节(256个WORD)，这里仅定义了一些感兴趣的项(基本上依据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软启动

(“Overlap:1”,USHORT), ## 1=支持重叠操作

(“Queue:1”,USHORT), ## 1=支持命令队列

(“InlDMA:1”,USHORT), ## 1=支持交叉存取DMA

]

class FieldValidity(Structure): ## WORD 53: 后续字段有效性标志

_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: 多扇区读写设定

_fields_=[

(“CurNumber:8”,USHORT), ## 当前一次性可读写扇区数

(“Multi:1”,USHORT), ## 1=已选择多扇区读写

(“reserved1:7”,USHORT),

]

class MultiWordDMA(Structure): ## WORD 63: 多字节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=已选择模式0

(“Mode1Sel:1”,USHORT), ## 1=已选择模式1

(“Mode2Sel:1”,USHORT), ## 1=已选择模式2

(“Reserved2:5”,USHORT),

]

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

_fields_=[

(“AdvPOIModes:8”,USHORT), ## 支持高级POI模式数

(“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=已选择模式0

(“Mode1Sel:1”,USHORT), ## 1=已选择模式1

(“Mode2Sel:1”,USHORT), ## 1=已选择模式2

(“Mode3Sel:1”,USHORT), ## 1=已选择模式3

(“Mode4Sel:1”,USHORT), ## 1=已选择模式4

(“Mode5Sel:1”,USHORT), ## 1=已选择模式5

(“Mode6Sel:1”,USHORT), ## 1=已选择模式6

(“Mode7Sel:1”,USHORT), ## 1=已选择模式7

]

class _IDINFO(Structure):

_fields_=[

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

(“wNumCyls”,USHORT), ## WORD 1: 柱面数

(“wReserved2”,USHORT), ## WORD 2: 保留

(“wNumHeads”,USHORT), ## WORD 3: 磁头数

(“wReserved4”,USHORT), ## WORD 4: 保留

(“wReserved5”,USHORT), ## WORD 5: 保留

(“wNumSectorsPerTrack”,USHORT), ## WORD 6: 每磁道扇区数

(“wVendorUnique”,USHORT*3), ## WORD 7-9: 厂家设定值

(“sSerialNumber”,CHAR*20), ## WORD 20: 缓冲类型

(“wBufferSize”,USHORT), ## WORD 21: 缓冲大小

(“wECCSize”,USHORT), ## WORD 22: ECC校验大小

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

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

(“wMoreVendorUnique”,USHORT), ## WORD 47: 厂家设定值

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

(“wCapabilities”,Capabilities),

(“wReserved1”,USHORT), ## WORD 50: 保留

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

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

(“wFieldValidity”,FieldValidity),

(“wNumCurCyls”,USHORT), ## WORD 54: CHS可寻址的柱面数

(“wNumCurHeads”,USHORT), ## WORD 55: CHS可寻址的磁头数

(“wNumCurSectorsPerTrack”,USHORT), ## WORD 56: CHS可寻址每磁道扇区数

(“wCurSectorsLow”,USHORT), ## WORD 57: CHS可寻址的扇区数低位字

(“wCurSectorsHigh”,USHORT), ## WORD 58: CHS可寻址的扇区数高位字

(“wMultSectorStuff”,MultSectorStuff),

(“dwTotalSectors”,ULONG), ## WORD 60-61: LBA可寻址的扇区数

(“wSingleWordDMA”,USHORT), ## WORD 62: 单字节DMA支持能力

(“wMultiWordDMA”,MultiWordDMA),

(“wPIOCapacity”,PIOCapacity),

(“wMinMultiWordDMACycle”,USHORT), ## WORD 65: 多字节DMA传输周期的最小值

(“wRecMultiWordDMACycle”,USHORT), ## WORD 66: 多字节DMA传输周期的建议值

(“wMinPIONoFlowCycle”,USHORT), ## WORD 67: 无流控制时PIO传输周期的最小值

(“wMinPOIFlowCycle”,USHORT), ## WORD 68: 有流控制时PIO传输周期的最小值

(“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)