45f0a1156
Denys Vlasenko
2011-09-22
Subject
mdev: trim overlong comments. No code changes
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util-linux/mdev.c+1 -30
| @@ -93,26 +93,6 @@ | |
| //usage: "If /dev/mdev.seq file exists, mdev will wait for its value\n" | |
| //usage: "to match $SEQNUM variable. This prevents plug/unplug races.\n" | |
| //usage: "To activate this feature, create empty /dev/mdev.seq at boot." | |
| - | //usage: |
| - | //usage:#define mdev_notes_usage "" |
| - | //usage: IF_FEATURE_MDEV_CONFIG( |
| - | //usage: "The mdev config file contains lines that look like:\n" |
| - | //usage: " hd[a-z][0-9]* 0:3 660\n\n" |
| - | //usage: "That's device name (with regex match), uid:gid, and permissions.\n\n" |
| - | //usage: IF_FEATURE_MDEV_EXEC( |
| - | //usage: "Optionally, that can be followed (on the same line) by a special character\n" |
| - | //usage: "and a command line to run after creating/before deleting the corresponding\n" |
| - | //usage: "device(s). The environment variable $MDEV indicates the active device node\n" |
| - | //usage: "(which is useful if it's a regex match). For example:\n\n" |
| - | //usage: " hdc root:cdrom 660 *ln -s $MDEV cdrom\n\n" |
| - | //usage: "The special characters are @ (run after creating), $ (run before deleting),\n" |
| - | //usage: "and * (run both after creating and before deleting). The commands run in\n" |
| - | //usage: "the /dev directory, and use system() which calls /bin/sh.\n\n" |
| - | //usage: ) |
| - | //usage: "Config file parsing stops on the first matching line. If no config\n" |
| - | //usage: "entry is matched, devices are created with default 0:0 660. (Make\n" |
| - | //usage: "the last line match .* to override this.)\n\n" |
| - | //usage: ) |
| #include "libbb.h" | |
| #include "xregex.h" | |
| @@ -134,20 +114,11 @@ | |
| * (todo: explain "delete" and $FIRMWARE) | |
| * | |
| * If /etc/mdev.conf exists, it may modify /dev/device_name's properties. | |
| - | * /etc/mdev.conf file format: |
| - | * |
| - | * [-][subsystem/]device user:grp mode [>|=path]|[!] [@|$|*command args...] |
| - | * [-]@maj,min[-min2] user:grp mode [>|=path]|[!] [@|$|*command args...] |
| - | * [-]$envvar=val user:grp mode [>|=path]|[!] [@|$|*command args...] |
| * | |
| * Leading minus in 1st field means "don't stop on this line", otherwise | |
| * search is stopped after the matching line is encountered. | |
| * | |
| - | * The device name or "subsystem/device" combo is matched against 1st field |
| - | * (which is a regex), or maj,min is matched against 1st field, |
| - | * or specified environment variable (as regex) is matched against 1st field. |
| - | * |
| - | * $envvar=val format is useful for loading modules for hot-plugged devices |
| + | * $envvar=regex format is useful for loading modules for hot-plugged devices |
| * which do not have driver loaded yet. In this case /sys/class/.../dev | |
| * does not exist, but $MODALIAS is set to needed module's name | |
| * (actually, an alias to it) by kernel. This rule instructs mdev | |