1__SCSI_DEVICE_LOOKUP(9)         SCSI mid layer         __SCSI_DEVICE_LOOKUP(9)
2
3
4

NAME

6       __scsi_device_lookup - find a device given the host (UNLOCKED)
7

SYNOPSIS

9       struct scsi_device * __scsi_device_lookup(struct Scsi_Host * shost,
10                                                 uint channel, uint id,
11                                                 uint lun);
12

ARGUMENTS

14       shost
15           SCSI host pointer
16
17       channel
18           SCSI channel (zero if only one channel)
19
20       id
21           SCSI target number (physical unit number)
22
23       lun
24           SCSI Logical Unit Number
25

DESCRIPTION

27       Looks up the scsi_device with the specified channel, id, lun for a
28       given host. The returned scsi_device does not have an additional
29       reference. You must hold the host's host_lock over this call and any
30       access to the returned scsi_device.
31

NOTE

33       The only reason why drivers would want to use this is because they need
34       to access the device list in irq context. Otherwise you really want to
35       use scsi_device_lookup instead.
36

AUTHORS

38       James Bottomley <James.Bottomley@hansenpartnership.com>
39           Author.
40
41       Rob Landley <rob@landley.net>
42           Author.
43

45Kernel Hackers Manual 2.6.       November 2011         __SCSI_DEVICE_LOOKUP(9)
Impressum