centos man page for hsi_async

HSI_ASYNC(9)						   High Speed Synchronous Serial					      HSI_ASYNC(9)

NAME
       hsi_async - Submit an HSI transfer to the controller

SYNOPSIS
       int hsi_async(struct hsi_client * cl, struct hsi_msg * msg);

ARGUMENTS
       cl
	   HSI client sending the transfer

       msg
	   The HSI transfer passed to controller

DESCRIPTION
       The HSI message must have the channel, ttype, complete and destructor fields set beforehand. If nents > 0 then the client has to initialize
       also the scatterlists to point to the buffers to write to or read from.

       HSI controllers relay on pre-allocated buffers from their clients and they do not allocate buffers on their own.

       Once the HSI message transfer finishes, the HSI controller calls the complete callback with the status and actual_len fields of the HSI
       message updated. The complete callback can be called before returning from hsi_async.

       Returns -errno on failure or 0 on success

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014							      HSI_ASYNC(9)