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>
diff --git a/docs/mdev.txt b/docs/mdev.txt
index 7bd00fe..2d03bd8 100644
--- a/docs/mdev.txt
+++ b/docs/mdev.txt
@@ -51,8 +51,8 @@
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 @@
.* 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 @@
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> <octal permissions> [>path] [@|$|*<command>]
+ <device regex> <uid>:<gid> <permissions> [>path] [@|$|*<command>]
+ or
+ <device regex> <uid>:<gid> <permissions> [!] [@|$|*<command>]
For example:
---8<---