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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

struct file * file
not used

const char __user * buf

buffer to write

size_t length

length of buf, at most PAGE_SIZE

loff_t * 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@hansenpartnership.com>
Author.

Rob Landley <rob@landley.net>

Author.

COPYRIGHT

September 2017 Kernel Hackers Manual 4.12