SCSI_MODE_SENSE

Section: SCSI mid layer (9)
Updated: February 2011
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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.

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