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) ; |
struct ata_device * dev
Device to which the command is sent
struct ata_taskfile * tf
Taskfile registers for the command and the result
const u8 * cdb
CDB for packet command
int dma_dir
Data transfer direction of the command
void * buf
Data buffer of the command
unsigned int buflen
Length of data buffer
unsigned long timeout
Timeout in msecs (0 for default)
Wrapper around ata_exec_internal_sg
which takes simple
buffer instead of sg list.
LOCKING: None. Should be called with kernel context, might sleep.