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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2010-04-02 06:47:14 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2010-04-02 06:47:14 +0200 |
| commit | b38af7bd31d98dd6e849354ee94ebafe580e7cc1 (patch) | |
| tree | 1bb84dbd4fdf6ba917b7a13ca436aba165856a2f /docs | |
| parent | 5342c3f3106b4afa2a76d3173f4827c4b8236da8 (diff) | |
| download | busybox-b38af7bd31d98dd6e849354ee94ebafe580e7cc1.tar.gz | |
mdev: add "!" syntax support
Based on the patch by Steve Bennett <steveb@workware.net.au>
function old new delta
make_device 1640 1673 +33
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/mdev.txt | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/docs/mdev.txt b/docs/mdev.txt index 7bd00fe1b..2d03bd8b2 100644 --- a/docs/mdev.txt +++ b/docs/mdev.txt @@ -51,8 +51,8 @@ device nodes if your system needs something more than the default root/root 660 permissions. The file has the format: - <device regex> <uid>:<gid> <octal permissions> - or @<maj[,min1[-min2]]> <uid>:<gid> <octal permissions> + <device regex> <uid>:<gid> <permissions> + or @<maj[,min1[-min2]]> <uid>:<gid> <permissions> For example: hd[a-z][0-9]* 0:3 660 @@ -63,7 +63,7 @@ create your own total match like so: .* 1:1 777 You can rename/move device nodes by using the next optional field. - <device regex> <uid>:<gid> <octal permissions> [=path] + <device regex> <uid>:<gid> <permissions> [=path] So if you want to place the device node into a subdirectory, make sure the path has a trailing /. If you want to rename the device node, just place the name. hda 0:3 660 =drives/ @@ -74,11 +74,17 @@ This will rename "hdb" to "cdrom". Similarly, ">path" renames/moves the device but it also creates a direct symlink /dev/DEVNAME to the renamed/moved device. +You can also prevent creation of device nodes with the 4th field as "!": + tty[a-z]. 0:0 660 ! + pty[a-z]. 0:0 660 ! + If you also enable support for executing your own commands, then the file has the format: - <device regex> <uid>:<gid> <octal permissions> [=path] [@|$|*<command>] + <device regex> <uid>:<gid> <permissions> [=path] [@|$|*<command>] + or + <device regex> <uid>:<gid> <permissions> [>path] [@|$|*<command>] or - <device regex> <uid>:<gid> <octal permissions> [>path] [@|$|*<command>] + <device regex> <uid>:<gid> <permissions> [!] [@|$|*<command>] For example: ---8<--- |