Man page 9 : ata_exec_internal

ata_exec_internal - execute libata internal command

unsigned ata_exec_internal(struct ata_device *  dev , struct ata_taskfile *  tf , const u8 *  cdb , int  dma_dir , void *  buf , unsigned int  buflen , unsigned long  timeout );

dev
    Device to which the command is sent

tf
    Taskfile registers for the command and the result

cdb
    CDB for packet command

dma_dir
    Data tranfer direction of the command

buf
    Data buffer of the command

buflen
    Length of data buffer

timeout
    Timeout in msecs (0 for default)

Wrapper around ata_exec_internal_sg which takes simple buffer instead of sg list.

None. Should be called with kernel context, might sleep.

Zero on success, AC_ERR_* mask on failure

Jeff Garzik
    Author.