IOCTL_ADAPT_GET_ALT_INTERFACE_SETTING

IOCTL_ADAPT_GET_ALT_INTERFACE_SETTING

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Description

This command retrieves the alternate interface setting for a particular interface of the attached device.

A pointer to a byte indicating the interface number is passed as the lpInBuffer parameter to the DeviceIoControl( ) function.

A pointer to a byte into which the alternate interface setting will be reported is passed as the lpOutBuffer parameter to the DeviceIoControl( ) function.

The length of the variables (1) is passed in the nInBufferSize and nOutBufferSize parameters.

Example

DWORD dwBytes = 0;

UCHAR intfc = 0;

UCHAR alt;

DeviceIoControl(hDevice, IOCTL_ADAPT_GET_ALT_INTERFACE_SETTING,

           &intfc, sizeof (alt),

           &alt, sizeof (alt),

           &dwBytes, NULL);