Hardware manual

UPS25 API Manual for Windows 2000/XP/Vista

Board Control IOCTLs

UPS25_SET_CONTROL

Description:

This IOCTL sets the current configuration of the board.

Parameters:

Input: An eight bit value:

BIT 0: 0 – Interrupts Disabled

1 – Interrupts Enabled

BIT 2: 0 – Batteries disconnected from board to prevent discharge

1 – Batteries connected to board for backup purposes

BIT 3: 0 – Charger active. Charging can take place

1 – Charger inactive. No charging possible.

Output: None

Example:

UCHAR Control;

ULONG BytesReturned;

DeviceIOControl( hDevice,

UPS25_SET_CONTROL,

&Control,

sizeof(Control),

NULL,

&BytesReturned,

NULL);

UPS25_SET_DISCONNECTBATT

Description:

This IOCTL tells the driver to disconnect the battery when the system shuts down.

Parameters:

Input: None

Output: None

Example:

ULONG BytesReturned;