IOCTL_SD_BUS_DRIVER_GET_SLOT_POWER_CONTROL (Compact 2013)
3/26/2014
This I/O control message returns the slot power control information for a given slot or the function power data for a given slot and function. Send this message with DeviceIoControl.
Syntax
BOOL DeviceIoControl(
HANDLE hDevice, // handle to device
DWORD dwIoControlCode, // use IOCTL_SD_BUS_DRIVER_GET_SLOT_POWER_CONTROL
LPVOID lpInBuffer, // pointer to input buffer
DWORD nInBufferSize, // input buffer size
LPVOID lpOutBuffer, // pointer to output buffer
DWORD nOutBufferSize, // output buffer size
LPDWORD lpBytesReturned, // number of bytes returned
OVERLAPPED lpOverlapped // pointer to OVERLAPPED structure
);
Parameters
- hDevice
The handle to the bus driver.
- dwIoControlCode
[in] Control code for the operation. Use IOCTL_SD_BUS_DRIVER_GET_SLOT_POWER_CONTROL for this operation.
- lpInBuffer
[in] Pointer to a DWORD variable that indicates the slot index or a pointer to a BUS_DRIVER_IN_SLOT_FUNCTION_POWER structure that indicates the slot and function index.
- nInBufferSize
[in] Size of the value pointed to by lpInBuffer.
- lpOutBuffer
[out] Pointer to a SLOT_POWER_DATA structure or a FUNCTION_POWER_DATA structure depending on the contents of lpInBuffer.
- nOutBufferSize
[in] Size of a SLOT_POWER_DATA structure or FUNCTION_POWER_DATA structure depending on the contents of lpInBuffer.
- lpBytesReturned
[out] Pointer to a DWORD variable to return the length of returned data. If there is no error, set to the size of the SLOT_POWER_DATA structure or FUNCTION_POWER_DATA structure depending on the contents of lpInBuffer.
- lpOverlapped
Ignored.
Return Values
Returns TRUE if successful; otherwise, returns FALSE.
Remarks
To get extended error information, call GetLastError. GetLastError may return other standard error messages as appropriate.
Requirements
Header |
sdcardddk.h |