PROC_SCSI_WRITE(9)                        SCSI mid layer                       PROC_SCSI_WRITE(9)



NAME
       proc_scsi_write - handle writes to /proc/scsi/scsi

SYNOPSIS
       ssize_t proc_scsi_write(struct file * file, const char __user * buf, size_t length,
                               loff_t * ppos);

ARGUMENTS
       file
           not used

       buf
           buffer to write

       length
           length of buf, at most PAGE_SIZE

       ppos
           not used

DESCRIPTION
       this provides a legacy mechanism to add or remove devices by Host, Channel, ID, and Lun.
       To use, “echo 'scsi add-single-device 0 1 2 3' > /proc/scsi/scsi” or “echo 'scsi
       remove-single-device 0 1 2 3' > /proc/scsi/scsi” with “0 1 2 3” replaced by the Host,
       Channel, Id, and Lun.

NOTE
       this seems to be aimed at parallel SCSI. Most modern busses (USB, SATA, Firewire, Fibre
       Channel, etc) dynamically assign these values to provide a unique identifier and nothing
       more.

AUTHORS
       James Bottomley <James.Bottomley AT hansenpartnership.com>
           Author.

       Rob Landley <rob AT landley.net>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                        PROC_SCSI_WRITE(9)