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HSI_ALLOC_MSG(9) High Speed Synchronous Serial HSI_ALLOC_MSG(9)

NAME

hsi_alloc_msg - Allocate an HSI message

SYNOPSIS

struct hsi_msg * hsi_alloc_msg(unsigned int nents, gfp_t flags);

ARGUMENTS

nents

Number of memory entries

flags

Kernel allocation flags

DESCRIPTION

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.

COPYRIGHT

June 2024 Kernel Hackers Manual 3.10