<term><literal>program</literal></term>
<listitem>
<para>Execute an external program specified as the assigned
- value and if it returns successfully
+ value and, if it returns successfully,
import its output, which must be in environment key
format. Path specification, command/argument separation,
and quoting work like in <varname>RUN</varname>.</para>
</listitem>
</varlistentry>
- <varlistentry>
- <term><varname>WAIT_FOR</varname></term>
- <listitem>
- <para>Wait for a file to become available or until a timeout of
- 10 seconds expires. The path is relative to the sysfs device;
- if no path is specified, this waits for an attribute to appear.</para>
- </listitem>
- </varlistentry>
-
<varlistentry>
<term><varname>OPTIONS</varname></term>
<listitem>
<varlistentry>
<term><option>string_escape=<replaceable>none|replace</replaceable></option></term>
<listitem>
- <para>Usually control and other possibly unsafe characters are replaced
+ <para>Usually, control and other possibly unsafe characters are replaced
in strings used for device naming. The mode of replacement can be specified
with this option.</para>
</listitem>