rtdm.c File Reference

RTDM interface. More...

Go to the source code of this file.

Data Structures
struct	ec_rtdm_context_t
	Context structure for an open RTDM file handle. More...

Macros
#define	DEBUG   0
	Set to 1 to enable device operations debugging.

Functions
int	ec_rtdm_open (struct rtdm_dev_context *context, rtdm_user_info_t *user_info, int oflags)
	Driver open. More...
int	ec_rtdm_close (struct rtdm_dev_context *context, rtdm_user_info_t *user_info)
	Driver close. More...
int	ec_rtdm_ioctl (struct rtdm_dev_context *context, rtdm_user_info_t *user_info, unsigned int request, void __user *arg)
	Driver ioctl. More...
int	ec_rtdm_dev_init (ec_rtdm_dev_t *rtdm_dev, ec_master_t *master)
	Initialize an RTDM device. More...
void	ec_rtdm_dev_clear (ec_rtdm_dev_t *rtdm_dev)
	Clear an RTDM device. More...
int	ec_rtdm_mmap (ec_ioctl_context_t *ioctl_ctx, void **user_address)
	Memory-map process data to user space. More...

Detailed Description

RTDM interface.

Definition in file rtdm.c.

Function Documentation

ec_rtdm_open()

int ec_rtdm_open	(	struct rtdm_dev_context *	context,
		rtdm_user_info_t *	user_info,
		int	oflags
	)

Driver open.

Returns

Always zero (success).

Parameters

context	Context.
user_info	User data.
oflags	Open flags.

Definition at line 141 of file rtdm.c.

ec_rtdm_close()

int ec_rtdm_close	(	struct rtdm_dev_context *	context,
		rtdm_user_info_t *	user_info
	)

Driver close.

Returns

Always zero (success).

Parameters

context	Context.
user_info	User data.

Definition at line 171 of file rtdm.c.

ec_rtdm_ioctl()

int ec_rtdm_ioctl	(	struct rtdm_dev_context *	context,
		rtdm_user_info_t *	user_info,
		unsigned int	request,
		void __user *	arg
	)

Driver ioctl.

Returns

ioctl() return code.

Parameters

context	Context.
user_info	User data.
request	Request.
arg	Argument.

Definition at line 196 of file rtdm.c.

ec_rtdm_dev_init()

int ec_rtdm_dev_init	(	ec_rtdm_dev_t *	rtdm_dev,
		ec_master_t *	master
	)

Initialize an RTDM device.

Returns

Zero on success, otherwise a negative error code.

Parameters

rtdm_dev	EtherCAT RTDM device.
master	EtherCAT master.

Definition at line 69 of file rtdm.c.

ec_rtdm_dev_clear()

void ec_rtdm_dev_clear

(

ec_rtdm_dev_t *

rtdm_dev

)

Clear an RTDM device.

Parameters

rtdm_dev

EtherCAT RTDM device.

Definition at line 118 of file rtdm.c.

ec_rtdm_mmap()

int ec_rtdm_mmap	(	ec_ioctl_context_t *	ioctl_ctx,
		void **	user_address
	)

Memory-map process data to user space.

Returns

Zero on success, otherwise a negative error code.

Parameters

ioctl_ctx	Context.
user_address	Userspace address.

Definition at line 220 of file rtdm.c.