Unit Devices

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`NONE = 0;`
`DEVICE_BUS_PCI = 1;`
`DEVICE_BUS_USB = 2;`
`DEVICE_BUS_ISA = 3;`
`DEVICE_BUS_PS2 = 4;`
`DEVICE_BUS_FIREWIRE = 5;`
`DEVICE_BUS_SD = 6;`	SD/SDHC/SDXC/SDIO etc
`DEVICE_BUS_MMC = 7;`	MMC/eMMC etc
`DEVICE_BUS_ATA = 8;`
`DEVICE_BUS_IDE = 9;`
`DEVICE_BUS_SCSI = 10;`
`DEVICE_BUS_ATAPI = 11;`
`DEVICE_BUS_SATA = 12;`
`DEVICE_BUS_SERIAL = 13;`
`DEVICE_BUS_SPI = 14;`	Serial Peripheral Interface device
`DEVICE_BUS_MMIO = 15;`	Memory Mapped IO device (No Bus)
`DEVICE_BUS_PCIE = 16;`
`DEVICE_BUS_I2C = 17;`	I2C connected device

`DEVICE_BUS_MAX = 17;`

`DEVICE_NOTIFICATION_NONE = $00000000;`	Pass to DeviceNotification to cancel an existing Notification
`DEVICE_NOTIFICATION_REGISTER = $00000001;`
`DEVICE_NOTIFICATION_DEREGISTER = $00000002;`
`DEVICE_NOTIFICATION_OPEN = $00000004;`
`DEVICE_NOTIFICATION_CLOSE = $00000008;`
`DEVICE_NOTIFICATION_UP = $00000010;`
`DEVICE_NOTIFICATION_DOWN = $00000020;`
`DEVICE_NOTIFICATION_INSERT = $00000040;`
`DEVICE_NOTIFICATION_EJECT = $00000080;`
`DEVICE_NOTIFICATION_ATTACH = $00000100;`
`DEVICE_NOTIFICATION_DETACH = $00000200;`
`DEVICE_NOTIFICATION_ENABLE = $00000400;`
`DEVICE_NOTIFICATION_DISABLE = $00000800;`
`DEVICE_NOTIFICATION_BIND = $00001000;`
`DEVICE_NOTIFICATION_UNBIND = $00002000;`
`DEVICE_NOTIFICATION_ATTACHING = $00004000;`
`DEVICE_NOTIFICATION_DETACHING = $00008000;`
`DEVICE_NOTIFICATION_INSERTING = $00010000;`
`DEVICE_NOTIFICATION_EJECTING = $00020000;`
`DEVICE_NOTIFICATION_OPENING = $00040000;`
`DEVICE_NOTIFICATION_CLOSING = $00080000;`
`DEVICE_NOTIFICATION_RESIZE = $00100000;`
`DEVICE_NOTIFICATION_RESIZING = $00200000;`

`DEVICE_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;`	Device debugging messages
`DEVICE_LOG_LEVEL_INFO = LOG_LEVEL_INFO;`	Device informational messages, such as a device being attached or detached
`DEVICE_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;`	Device error messages
`DEVICE_LOG_LEVEL_NONE = LOG_LEVEL_NONE;`	No Device messages

Size	Size in bytes to allocate for new device (Including the device entry)
Return	Pointer to new Device entry or nil if device could not be created

Size	Size in bytes to allocate for new driver (Including the driver entry)
Return	Pointer to new Driver entry or nil if driver could not be created

Unit Devices

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`DEVICE_STATE_UNREGISTERED = 0;`
`DEVICE_STATE_REGISTERED = 1;`

`DEVICE_STATE_MAX = 1;`

`NOTIFIER_STATE_UNREGISTERED = 0;`
`NOTIFIER_STATE_REGISTERED = 1;`

`NOTIFIER_FLAG_NONE = $00000000;`
`NOTIFIER_FLAG_WORKER = $00000001;`	If set, notification callback event will be scheduled on a worker thread

Size	Size in bytes to allocate for new Clock (Including the Clock entry)
Return	Pointer to new Clock entry or nil if Clock could not be created

Timer	The Timer device to start
Return	ERROR_SUCCESS if completed or another error code on failure

Timer	The Timer device to stop
Return	ERROR_SUCCESS if completed or another error code on failure

Timer	The Timer device to read from
Return	The 32 bit current value of the timer or 0 on failure

Timer	The Timer device to wait for
Return	ERROR_SUCCESS if the interval expired or another error code on failure

Timer	The Timer device to schedule the callback for
Callback	The function to be called when the interval expires
Data	A pointer to be pass to the function when the interval expires (Optional)
Return	ERROR_SUCCESS if the callback was scheduled successfully or another error code on failure

Timer	The Timer device to cancel the callback for
Return	ERROR_SUCCESS if the callback was cancelled successfully or another error code on failure

Timer	The Timer device to get the rate from
Return	The current clock rate in Hz or 0 on failure

Timer	The Timer device to set the rate for
Rate	The clock rate in Hz to set
Return	ERROR_SUCCESS if the clock rate was set or another error code on failure

Timer	The Timer device to get the interval from
Return	The current interval in ticks or 0 on failure (or not set)
Note	The tick rate is determined by the clock rate

Timer	The Timer device to set the interval for
Interval	The interval in ticks to set
Return	ERROR_SUCCESS if the interval was set or another error code on failure
Note	The tick rate is determined by the clock rate

Timer	The Timer device to get properties from
Properties	Pointer to a TTimerProperties structure to fill in
Return	ERROR_SUCCESS if completed or another error code on failure

Size	Size in bytes to allocate for new Timer (Including the Timer entry)
Return	Pointer to new Timer entry or nil if Timer could not be created

Timer	The timer device to destroy
Return	ERROR_SUCCESS if completed or another error code on failure

Timer	The timer device to register
Return	ERROR_SUCCESS if completed or another error code on failure

Timer	The timer device to deregister
Return	ERROR_SUCCESS if completed or another error code on failure

TimerId	The ID number of the timer to find
Return	Pointer to timer device entry or nil if not found

Name	The name of the timer to find (eg Timer0)
Return	Pointer to timer device entry or nil if not found

Description	The description of the timer to find (eg BCM2836 ARM Timer)
Return	Pointer to timer device entry or nil if not found

Callback	The callback function to call for each timer in the table
Data	A private data pointer to pass to callback for each timer in the table
Return	ERROR_SUCCESS if completed or another error code on failure

Timer	The timer device to notify changes for (Optional, pass nil for all timers)
Callback	The function to call when a notification event occurs
Data	A private data pointer to pass to callback when a notification event occurs
Notification	The events to register for notification of (eg DEVICE_NOTIFICATION_REGISTER)
Flags	The flags to control the notification (eg NOTIFIER_FLAG_WORKER)

Size	Size in bytes to allocate for new Random (Including the Random entry)
Return	Pointer to new Random entry or nil if Random could not be created

Size	Size in bytes to allocate for new Mailbox (Including the Mailbox entry)
Return	Pointer to new Mailbox entry or nil if Mailbox could not be created

Size	Size in bytes to allocate for new Watchdog (Including the Watchdog entry)
Return	Pointer to new Watchdog entry or nil if Watchdog could not be created