HSI_ALLOC_MSG(9) High Speed Synchronous Serial HSI_ALLOC_MSG(9)NAMEhsi_alloc_msg - Allocate an HSI messageSYNOPSISstruct hsi_msg * hsi_alloc_msg(unsigned int nents, gfp_t flags);ARGUMENTSnents Number of memory entries flags Kernel allocation flagsDESCRIPTIONnents 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.COPYRIGHTKernel Hackers Manual 3.10 June 2014 HSI_ALLOC_MSG(9)