Man page 9 : scsi_mode_select

scsi_mode_select - issue a mode select

int scsi_mode_select(struct scsi_device *  sdev , int  pf , int  sp , int  modepage , unsigned char *  buffer , int  len , int  timeout , int  retries , struct scsi_mode_data *  data , struct scsi_sense_hdr *  sshdr );

sdev
    SCSI device to be queried

pf
    Page format bit (1 == standard, 0 == vendor specific)

sp
    Save page bit (0 == donAqt save, 1 == save)

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.

Returns zero if successful; negative error number or scsi status on error

James Bottomley <>
    Author.

Rob Landley <>
    Author.