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hsi_async(9) - phpMan

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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 4.8.                 January 2017                              HSI_ASYNC(9)


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