X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=udev%2Fudev.xml;h=77053b7700d77ed1f18fa1771e136db6eb4433af;hp=e012bf8182aece864068d010b97f085e2fd9884d;hb=2c47027b31f7af9b7b25348f2baba77bba586b61;hpb=57c0409fcebbfc34e386cc48425f44c364d378ff diff --git a/udev/udev.xml b/udev/udev.xml index e012bf818..77053b770 100644 --- a/udev/udev.xml +++ b/udev/udev.xml @@ -86,14 +86,14 @@ Every line in the rules file contains at least one key-value pair. There are two kind of keys: match and assignment. If all match keys are matching against its value, the rule gets applied and the - assign keys get the specified value assigned. + assignment keys get the specified value assigned. A matching rule may rename a network interface, add symlinks pointing to the device node, or run a specified program as part of the event handling. - A rule consists of a list of one or more key-value pairs separated by - a comma. Each key has a distinct operation, depending on the used operator. Valid + A rule consists of a comma-separated list of one or more key-value pairs. + Each key has a distinct operation, depending on the used operator. Valid operators are: @@ -128,8 +128,7 @@ - Assign a value to a key finally; disallow any later changes, - which may be used to prevent changes by any later rules. + Assign a value to a key finally; disallow any later changes. @@ -189,7 +188,7 @@ - Match the driver name of the event device. Only set for devices + Match the driver name of the event device. Only set this key for devices which are bound to a driver at the time the event is generated. @@ -197,8 +196,8 @@ Match sysfs attribute values of the event device. Trailing - whitespace in the attribute values is ignored, if the specified match - value does not contain trailing whitespace itself. + whitespace in the attribute values is ignored unless the specified match + value itself contains trailing whitespace. @@ -229,8 +228,8 @@ Search the devpath upwards for a device with matching sysfs attribute values. If multiple matches are specified, all of them - must match on the same device. Trailing whitespace in the attribute values is ignored, - if the specified match value does not contain trailing whitespace itself. + must match on the same device. Trailing whitespace in the attribute values is ignored + unless the specified match value itself contains trailing whitespace. @@ -259,10 +258,11 @@ - Execute a program. The key is true, if the program returns + Execute a program to determine whether there + is a match; the key is true if the program returns successfully. The device properties are made available to the - executed program in the environment. The program's output printed to - stdout, is available in the RESULT key. + executed program in the environment. The program's stdout + is available in the RESULT key. @@ -275,13 +275,13 @@ - Most of the fields support a shell style pattern matching. The following + Most of the fields support shell-style pattern matching. The following pattern characters are supported: - Matches zero, or any number of characters. + Matches zero or more characters. @@ -295,8 +295,8 @@ Matches any single character specified within the brackets. For example, the pattern string 'tty[SR]' would match either 'ttyS' or 'ttyR'. - Ranges are also supported within this match with the '-' character. - For example, to match on the range of all digits, the pattern [0-9] would + Ranges are also supported via the '-' character. + For example, to match on the range of all digits, the pattern [0-9] could be used. If the first character following the '[' is a '!', any characters not enclosed are matched.