Device Information IOCTLs
The following table shows the device information IOCTLs with a description of the purpose of each.
| Programming element | Description |
|---|---|
| IOCTL_HAL_GET_DEVICE_INFO | This IOCTL provides information about the system parameters information (SPI) codes supported by the SystemParametersInfo function. |
| IOCTL_HAL_GET_DEVICEID | This IOCTL returns the current DEVICE_ID structure assigned to the device. |
| IOCTL_HAL_GET_UUID | This IOCTL returns the universally unique identifier (UUID). |
| IOCTL_HAL_QUERY_DEVICE_SETTINGS | This IOCTL is used to obtain information about the system parameters information (SPI) codes supported by the SystemParametersInfo function. |
| IOCTL_HAL_SET_DEVICE_INFO | This IOCTL is called to set the data returned by IOCTL_HAL_GET_DEVICE_INFO. |
See Also
Last updated on Wednesday, April 13, 2005
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