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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-w32-b38af7bd31d98dd6e849354ee94ebafe580e7cc1.tar.gz busybox-w32-b38af7bd31d98dd6e849354ee94ebafe580e7cc1.tar.bz2 busybox-w32-b38af7bd31d98dd6e849354ee94ebafe580e7cc1.zip | |
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 | |||
| 51 | 660 permissions. | 51 | 660 permissions. |
| 52 | 52 | ||
| 53 | The file has the format: | 53 | The file has the format: |
| 54 | <device regex> <uid>:<gid> <octal permissions> | 54 | <device regex> <uid>:<gid> <permissions> |
| 55 | or @<maj[,min1[-min2]]> <uid>:<gid> <octal permissions> | 55 | or @<maj[,min1[-min2]]> <uid>:<gid> <permissions> |
| 56 | 56 | ||
| 57 | For example: | 57 | For example: |
| 58 | hd[a-z][0-9]* 0:3 660 | 58 | hd[a-z][0-9]* 0:3 660 |
| @@ -63,7 +63,7 @@ create your own total match like so: | |||
| 63 | .* 1:1 777 | 63 | .* 1:1 777 |
| 64 | 64 | ||
| 65 | You can rename/move device nodes by using the next optional field. | 65 | You can rename/move device nodes by using the next optional field. |
| 66 | <device regex> <uid>:<gid> <octal permissions> [=path] | 66 | <device regex> <uid>:<gid> <permissions> [=path] |
| 67 | So if you want to place the device node into a subdirectory, make sure the path | 67 | So if you want to place the device node into a subdirectory, make sure the path |
| 68 | has a trailing /. If you want to rename the device node, just place the name. | 68 | has a trailing /. If you want to rename the device node, just place the name. |
| 69 | hda 0:3 660 =drives/ | 69 | hda 0:3 660 =drives/ |
| @@ -74,11 +74,17 @@ This will rename "hdb" to "cdrom". | |||
| 74 | Similarly, ">path" renames/moves the device but it also creates | 74 | Similarly, ">path" renames/moves the device but it also creates |
| 75 | a direct symlink /dev/DEVNAME to the renamed/moved device. | 75 | a direct symlink /dev/DEVNAME to the renamed/moved device. |
| 76 | 76 | ||
| 77 | You can also prevent creation of device nodes with the 4th field as "!": | ||
| 78 | tty[a-z]. 0:0 660 ! | ||
| 79 | pty[a-z]. 0:0 660 ! | ||
| 80 | |||
| 77 | If you also enable support for executing your own commands, then the file has | 81 | If you also enable support for executing your own commands, then the file has |
| 78 | the format: | 82 | the format: |
| 79 | <device regex> <uid>:<gid> <octal permissions> [=path] [@|$|*<command>] | 83 | <device regex> <uid>:<gid> <permissions> [=path] [@|$|*<command>] |
| 84 | or | ||
| 85 | <device regex> <uid>:<gid> <permissions> [>path] [@|$|*<command>] | ||
| 80 | or | 86 | or |
| 81 | <device regex> <uid>:<gid> <octal permissions> [>path] [@|$|*<command>] | 87 | <device regex> <uid>:<gid> <permissions> [!] [@|$|*<command>] |
| 82 | 88 | ||
| 83 | For example: | 89 | For example: |
| 84 | ---8<--- | 90 | ---8<--- |