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udi_buf_read(3udi)
Read data bytes from a logical buffer
#include <udi.h>void udi_buf_read ( udi_buf_t *src_buf, udi_size_t src_off, udi_size_t src_len, void *dst_mem );ARGUMENTS src_buf is a pointer to a buffer containing data to be read.
src_off is the offset, in bytes, into the logical data of src_buf at which to start reading data.
src_off must be £ src_buf->buf_size.src_len The number of bytes to be read from src_buf.
src_off+src_len must not exceed src_buf->buf_size.dst_mem pointer to caller's memory where data is to be copied.
DESCRIPTION udi_buf_read non-destructively reads data bytes from a logical buffer to a virtually contiguous driver memory area pointed to by src_buf. No endianness conversion will be performed by udi_buf_read.
If src_buf->buf_size was previously extended to include bytes not explicitly written, the resulting values in dst_mem for these bytes are unspecified.