| SCSI_MODE_SENSE(9) | SCSI mid layer | SCSI_MODE_SENSE(9) |
NAME¶
scsi_mode_sense - issue a mode sense, falling back from 10 to six bytes if necessary.
SYNOPSIS¶
int scsi_mode_sense(struct scsi_device * sdev, int dbd, int modepage, unsigned char * buffer, int len, int timeout, int retries, struct scsi_mode_data * data, struct scsi_sense_hdr * sshdr);
ARGUMENTS¶
sdev
SCSI device to be queried
dbd
set if mode sense will allow block descriptors to be
returned
modepage
mode page being requested
buffer
request buffer (may not be smaller than eight
bytes)
len
length of request buffer.
timeout
command timeout
retries
number of retries before failing
data
returns a structure abstracting the mode header
data
sshdr
place to put sense data (or NULL if no sense to be
collected). must be SCSI_SENSE_BUFFERSIZE big.
DESCRIPTION¶
Returns zero if unsuccessful, or the header offset (either 4 or 8 depending on whether a six or ten byte command was issued) if successful.
AUTHORS¶
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT¶
| May 2024 | Kernel Hackers Manual 2.6. |