hsi_alloc_msg9
Allocate an hsi message
Usage
struct hsi_msg * hsi_alloc_msg(unsigned int nents, gfp_t flags);
Arguments
nents
Number of memory entries
flags
Kernel allocation flags
Overview
nents can be 0. This mainly makes sense for read transfer. In that case, HSI drivers will call the complete callback when there is data to be read without consuming it.
Return NULL on failure or a pointer to an hsi_msg on success.