Name
__scsi_device_lookup —
find a device given the host (UNLOCKED)
Synopsis
struct scsi_device * __scsi_device_lookup ( | struct Scsi_Host * shost, |
| | uint channel, |
| | uint id, |
| | uint lun); |
Arguments
shost
SCSI host pointer
channel
SCSI channel (zero if only one channel)
id
SCSI target number (physical unit number)
lun
SCSI Logical Unit Number
Description
Looks up the scsi_device with the specified channel, id, lun
for a given host. The returned scsi_device does not have an additional
reference. You must hold the host's host_lock over this call and any access
to the returned scsi_device.
Note
The only reason why drivers would want to use this is because
they need to access the device list in irq context. Otherwise you
really want to use scsi_device_lookup instead.