SPI_REPLACE_TRANSFER(9)           Serial Peripheral Interface (S          SPI_REPLACE_TRANSFER(9)



NAME
       spi_replace_transfers - replace transfers with several transfers and register change with
       spi_message.resources

SYNOPSIS
       struct spi_replaced_transfers * spi_replace_transfers(struct spi_message * msg,
                                                             struct spi_transfer * xfer_first,
                                                             size_t remove, size_t insert,
                                                             spi_replaced_release_t release,
                                                             size_t extradatasize, gfp_t gfp);

ARGUMENTS
       msg
           the spi_message we work upon

       xfer_first
           the first spi_transfer we want to replace

       remove
           number of transfers to remove

       insert
           the number of transfers we want to insert instead

       release
           extra release code necessary in some circumstances

       extradatasize
           extra data to allocate (with alignment guarantees of struct spi_transfer)

       gfp
           gfp flags

RETURN
       pointer to spi_replaced_transfers, PTR_ERR(...) in case of errors.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   SPI_REPLACE_TRANSFER(9)