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authorGreg Kroah-Hartman <gregkh@suse.de>2005-06-21 00:15:16 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-26 15:25:05 -0400
commit5c3927dc3468f47b803c9e1bb82cbed2bbd411ab (patch)
treeb8a5a2abe3a2be9f35606fcbee2698a44af2cb37 /Documentation/filesystems/devfs/boot-options
parentd8deac5094988c7ad1127ee61f52c59a952fcabb (diff)
[PATCH] devfs: Remove devfs documentation from the kernel tree
Removes the Documentaiton/filesystems/devfs/ directory Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1/* -*- auto-fill -*- */
2
3 Device File System (devfs) Boot Options
4
5 Richard Gooch <rgooch@atnf.csiro.au>
6
7 18-AUG-2001
8
9
10When CONFIG_DEVFS_DEBUG is enabled, you can pass several boot options
11to the kernel to debug devfs. The boot options are prefixed by
12"devfs=", and are separated by commas. Spaces are not allowed. The
13syntax looks like this:
14
15devfs=<option1>,<option2>,<option3>
16
17and so on. For example, if you wanted to turn on debugging for module
18load requests and device registration, you would do:
19
20devfs=dmod,dreg
21
22You may prefix "no" to any option. This will invert the option.
23
24
25Debugging Options
26=================
27
28These requires CONFIG_DEVFS_DEBUG to be enabled.
29Note that all debugging options have 'd' as the first character. By
30default all options are off. All debugging output is sent to the
31kernel logs. The debugging options do not take effect until the devfs
32version message appears (just prior to the root filesystem being
33mounted).
34
35These are the options:
36
37dmod print module load requests to <request_module>
38
39dreg print device register requests to <devfs_register>
40
41dunreg print device unregister requests to <devfs_unregister>
42
43dchange print device change requests to <devfs_set_flags>
44
45dilookup print inode lookup requests
46
47diget print VFS inode allocations
48
49diunlink print inode unlinks
50
51dichange print inode changes
52
53dimknod print calls to mknod(2)
54
55dall some debugging turned on
56
57
58Other Options
59=============
60
61These control the default behaviour of devfs. The options are:
62
63mount mount devfs onto /dev at boot time
64
65only disable non-devfs device nodes for devfs-capable drivers