Ubuntu manuals

Provided by: linux-doc-2.6.15_2.6.15-23.39_all

NAME

       ata_exec_internal - execute libata internal command

SYNOPSIS

       unsigned int ata_exec_internal  (struct ata_port * ap,
                                          struct ata_device * dev,
                                          struct ata_taskfile * tf,
                                          int dma_dir, void * buf,
                                          unsigned int buflen);

ARGUMENTS

       ap     Port to which the command is sent

       dev    Device to which the command is sent

       tf     Taskfile registers for the command and the result

       dma_dir
              Data tranfer direction of the command

       buf    Data buffer of the command

       buflen Length of data buffer

DESCRIPTION

       Executes  libata  internal command with timeout. tf contains command on
       entry and result on return. Timeout and error conditions  are  reported
       via  return  value.  No  recovery action is taken after a command times
       out. It’s caller’s duty to clean up after timeout.

LOCKING

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

AUTHOR

       Jeff Garzik.