Name
scsi_test_unit_ready —
test if unit is ready
Synopsis
int scsi_test_unit_ready ( | struct scsi_device * | sdev, |
| | int | timeout, |
| | int | retries, |
| | struct scsi_sense_hdr * | sshdr_external); |
Arguments
sdev
scsi device to change the state of.
timeout
command timeout
retries
number of retries before failing
sshdr_external
Optional pointer to struct scsi_sense_hdr for
returning sense. Make sure that this is cleared before passing
in.
Description
Returns zero if unsuccessful or an error if TUR failed. For
removable media, a return of NOT_READY or UNIT_ATTENTION is
translated to success, with the ->changed flag updated.