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ATA_EXEC_INTERNAL(9) libata Core Internals ATA_EXEC_INTERNAL(9)

NAME

ata_exec_internal - execute libata internal command

SYNOPSIS

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);

ARGUMENTS

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)

DESCRIPTION

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

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

RETURN

Zero on success, AC_ERR_* mask on failure

AUTHOR

Jeff Garzik

Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12