linux/comedi/comedidev.h

29  * @device: COMEDI device to which this subdevice belongs.  (Initialized by
32  *	(Initialized by comedi_alloc_subdevices().)
33  * @type: Type of subdevice from &enum comedi_subdevice_type.  (Initialized by
35  * @n_chan: Number of channels the subdevice supports.  (Initialized by the
38  *	the COMEDI core and user application.  (Initialized by the low-level
41  *	asynchronous acquisition commands.  (Optionally initialized by the
47  *	(Initialized by the low-level driver.)
49  *	asynchronous acquisition commands.  (Allocated and initialized during
58  *	driver.  (Initialized by comedi_alloc_subdevices().)
61  *	corresponding channel is configured as an output.  (Initialized by the
65  *	If zero, the maximum data value is channel-specific.  (Initialized by
69  *	(Initialized by the low-level driver.)
71  *	subdevice.  If NULL, the range table is channel-specific.  (Initialized
77  *	channel number.  (Initialized by the low-level driver.)
80  *	(Initialized by the low-level driver, or set to a default handler
83  *	(Initialized by the low-level driver, or set to a default handler
87  *	(Initialized by the low-level driver, or set to a default handler
90  *	instruction.  (Initialized by the low-level driver, or set to a default
93  *	points to a handler to set it up in hardware.  (Initialized by the
97  *	acquisition command without setting it up in hardware.  (Initialized by
101  *	instructs the low-level driver to synchronize buffers.  (Initialized by
104  *	points to a handler used to terminate a running command.  (Initialized
109  *	(Initialized by the low-level driver if needed.)
113  *	hardware into the format expected by COMEDI.  (Initialized by the
117  *	buffer, this sets the DMA direction for the buffer. (initialized to
121  *	output subdevice with no more than 32 channels. (Initialized by the
136  *	called for the device.  (Initialized by the low-level driver.)
142  * Most of the subdevice is initialized by the low-level driver's "attach" or
143  * "auto_attach" handlers but parts of it are initialized by
144  * comedi_alloc_subdevices(), and other parts are initialized during
520  *	instruction.  If this is not initialized by the low-level driver, a
524  *	%INSN_DEVICE_CONFIG instruction set.  If this is not initialized by the