sdo_request.h File Reference

EtherCAT CANopen SDO request structure. More...

Go to the source code of this file.

Data Structures
struct	ec_sdo_request
	CANopen SDO request. More...

Functions
void	ec_sdo_request_init (ec_sdo_request_t *)
	SDO request constructor.
void	ec_sdo_request_clear (ec_sdo_request_t *)
	SDO request destructor.
int	ec_sdo_request_copy (ec_sdo_request_t *, const ec_sdo_request_t *)
	Copy another SDO request. More...
int	ec_sdo_request_alloc (ec_sdo_request_t *, size_t)
	Pre-allocates the data memory. More...
int	ec_sdo_request_copy_data (ec_sdo_request_t *, const uint8_t *, size_t)
	Copies SDO data from an external source. More...
int	ec_sdo_request_timed_out (const ec_sdo_request_t *)
	Checks, if the timeout was exceeded. More...

Detailed Description

EtherCAT CANopen SDO request structure.

Definition in file sdo_request.h.

Function Documentation

ec_sdo_request_copy()

int ec_sdo_request_copy	(	ec_sdo_request_t *	req,
		const ec_sdo_request_t *	other
	)

Copy another SDO request.

Attention

Only the index subindex and data are copied.

Returns

Zero on success, otherwise a negative error code.

Parameters

req	SDO request.
other	Other SDO request to copy from.

Definition at line 91 of file sdo_request.c.

ec_sdo_request_alloc()

int ec_sdo_request_alloc	(	ec_sdo_request_t *	req,
		size_t	size
	)

Pre-allocates the data memory.

If the mem_size is already bigger than size, nothing is done.

Returns

0 on success, otherwise -ENOMEM.

Parameters

req	SDO request.
size	Data size to allocate.

Definition at line 127 of file sdo_request.c.

ec_sdo_request_copy_data()

int ec_sdo_request_copy_data	(	ec_sdo_request_t *	req,
		const uint8_t *	source,
		size_t	size
	)

Copies SDO data from an external source.

If the mem_size is to small, new memory is allocated.

Return values

0	Success.
<0	Error code.

Parameters

req	SDO request.
source	Source data.
size	Number of bytes in source.

Definition at line 156 of file sdo_request.c.

ec_sdo_request_timed_out()

int ec_sdo_request_timed_out

(

const ec_sdo_request_t *

req

)

Checks, if the timeout was exceeded.

Returns

non-zero if the timeout was exceeded, else zero.

Parameters

req	SDO request.

Definition at line 177 of file sdo_request.c.