read

Name

read -- reads received CAN messages from message object

Synopsis

ssize_t read(int fd, void * buf, size_t count);

Arguments

fd

file descriptor to opened can message communication object

buf

pointer to array of canmsg_t structures.

count

size of message array buffer in number of bytes

Description

Returns negative value in the case of error else returns number of read bytes which is multiple of canmsg_t structure size.