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.