Device context. More...

Collaboration diagram for rtdm_dev_context:

Data Fields
unsigned long	context_flags
	Context flags, see Context Flags for details.

int	fd
	Associated file descriptor.

atomic_t	close_lock_count
	Lock counter of context, held while structure is referenced by an operation handler.

struct rtdm_operations *	ops
	Set of active device operation handlers.

struct rtdm_device *	device
	Reference to owning device.

struct rtdm_devctx_reserved	reserved
	Data stored by RTDM inside a device context (internal use only)

char	dev_private [0]
	Begin of driver defined context data structure.

Detailed Description

Device context.

A device context structure is associated with every open device instance. RTDM takes care of its creation and destruction and passes it to the operation handlers when being invoked.

Drivers can attach arbitrary data immediately after the official structure. The size of this data is provided via rtdm_device.context_size during device registration.

The documentation for this struct was generated from the following file:

include/rtdm/rtdm_driver.h

Data Fields

Detailed Description