Hardware & Devices

noobDriverDev wrote:

Can you help me how can i get all the files/folders exists in a directory?

#include "stdafx.h"
#include <windows.h>

typedef LONG NTSTATUS;
#define NT_SUCCESS(Status) ((NTSTATUS)(Status) >= 0 && Status < 0x3FFFFFFF)
#define NT_STATUS(x)((NTSTATUS) { x })
#define STATUS_NO_MORE_FILES 0x80000006

typedef struct _UNICODE_STRING
{
	USHORT Length;
	USHORT MaximumLength;
	PWSTR Buffer;
} UNICODE_STRING, *PUNICODE_STRING;

typedef struct _IO_STATUS_BLOCK
{
	union
	{
		NTSTATUS Status;
		PVOID Pointer;
	};
	ULONG_PTR Information;
} IO_STATUS_BLOCK, *PIO_STATUS_BLOCK;

typedef struct _FILE_NAMES_INFORMATION 
{
	ULONG NextEntryOffset;
	ULONG FileIndex;
	ULONG FileNameLength;
	WCHAR FileName[_MAX_PATH +1];
} FILE_NAMES_INFORMATION, *PFILE_NAMES_INFORMATION;

typedef enum _FILE_INFORMATION_CLASS
{
	FileDirectoryInformation = 1, FileNamesInformation = 12
} FILE_INFORMATION_CLASS, *PFILE_INFORMATION_CLASS;

typedef struct _FILE_DIRECTORY_INFORMATION 
{
	ULONG NextEntryOffset;
	ULONG FileIndex;
	LARGE_INTEGER CreationTime;
	LARGE_INTEGER LastAccessTime;
	LARGE_INTEGER LastWriteTime;
	LARGE_INTEGER ChangeTime;
	LARGE_INTEGER EndOfFile;
	LARGE_INTEGER AllocationSize;
	ULONG FileAttributes;
	ULONG FileNameLength;
	WCHAR FileName[_MAX_PATH +1];
} FILE_DIRECTORY_INFORMATION, *PFILE_DIRECTORY_INFORMATION;

typedef VOID (NTAPI *PIO_APC_ROUTINE)\
(IN PVOID ApcContext,IN PIO_STATUS_BLOCK IoStatusBlock,IN ULONG Reserved);
NTSTATUS (NTAPI *ZwQueryDirectoryFile)\
(HANDLE,HANDLE,PIO_APC_ROUTINE,PVOID,PIO_STATUS_BLOCK,PVOID,ULONG,FILE_INFORMATION_CLASS,BOOLEAN,PUNICODE_STRING,BOOLEAN);

int _tmain(int argc, _TCHAR* argv[])
{
	HANDLE hFolder = CreateFile(argv[1],FILE_LIST_DIRECTORY,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_FLAG_BACKUP_SEMANTICS,NULL);
	if(INVALID_HANDLE_VALUE != hFolder)
	{
		*(FARPROC*)&ZwQueryDirectoryFile = GetProcAddress(GetModuleHandle(L"ntdll.dll"),"ZwQueryDirectoryFile");
		if(NULL != ZwQueryDirectoryFile)
		{
			NTSTATUS status = NOERROR;
			FILE_DIRECTORY_INFORMATION fi;
			IO_STATUS_BLOCK st;
			
			while(NT_SUCCESS(status))
			{
				WCHAR wszFolder[MAX_PATH+1] = {0};
				RtlZeroMemory(&st,sizeof(IO_STATUS_BLOCK));
				RtlZeroMemory(&fi,sizeof(FILE_NAMES_INFORMATION));
				status = ZwQueryDirectoryFile(hFolder,0,0,0,&st,&fi,
					sizeof(FILE_DIRECTORY_INFORMATION),
					FileDirectoryInformation,TRUE,NULL,FALSE);
				if(fi.FileAttributes & FILE_ATTRIBUTE_DIRECTORY)
				{
					memcpy(wszFolder,fi.FileName,fi.FileNameLength);
					*(wszFolder + fi.FileNameLength) =0;
					printf("%S\n",wszFolder);
				}
			}
		}
		CloseHandle(hFolder);
	}
	else
	{
		printf("ERROR: Invalid Directory!\n");
	}
	return 0;
}

Marimuthu.r wrote:

Found that this IOCTL_SERIAL_SET_BAUD_RATE is defined in the "ntddser.h" file.

Marimuthu.r wrote:

Do i need to install some Driver Development Package?

#define METHOD_BUFFERED 0
#define FILE_ANY_ACCESS 0
#define FILE_DEVICE_SERIAL_PORT         0x0000001b
#define CTL_CODE( DeviceType, Function, Method, Access ) (((DeviceType) << 16) | ((Access) << 14) | ((Function) << 2) | (Method))
#define IOCTL_SERIAL_SET_BAUD_RATE CTL_CODE (FILE_DEVICE_SERIAL_PORT, 1, METHOD_BUFFERED, FILE_ANY_ACCESS)
ULONG BaudRate = 9600;
NSSTATUS status = DeviceIoControl(hModemDevice, IOCTL_SERIAL_SET_BAUD_RATE,&BaudRate, sizeof(BaudRate), NULL, NULL);

Jörgen Andersson wrote:

The problem is that the battery is reaching its max voltage already when it's 70 - 90% full (while charging) and that the rest of the charging takes pretty long time

Member 4723455 wrote:

At 20deg C, a car battery will lose ~5% per month, Nickel Metal Hydride ~30% per month, Lithium ~3% per month. The discharge rates will increase significantly at higher temperatures.

Member 4723455 wrote:

Is it possible that there is still a drain on the batteries? For example do you hibernate the laptop instead of shutting it off? Do you have wake on lan or other settings turned on which will keep the computer running at low power?

Member 4723455 wrote:

If possible, charge the batteries fully, take them out of the laptop and put them in the refrigerator (NOT the freezer) for a few days. See what the charge is when you put them back into the laptop. If they are down more than a few percent they probably have an internal short, in which case you should definately stop using them and have them replaced.

Dave Kreskowiak wrote:

If it's brand new, out of the box, the battery meter has to "learn" the recharge and consumption curves. This takes time and it gets more acurate the more the power is drained from the battery and recharged.

Dave Kreskowiak wrote:

Now, if the laptop stays powered off for a week and dies, then you've got a hardware issue with either the motherboard in the laptop or the battery.