CAN Device Driver Internals | ||
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file descriptor to opened can message communication object
pointer to array of canmsg_t structures.
size of message array buffer in number of bytes. The parameter informs driver about number of messages prepared for transmission and should be multiple of canmsg_t structure size.
Returns negative value in the case of error else returns number of bytes successfully stored into message object transmission queue. The positive returned number is multiple of canmsg_t structure size.
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