<varlistentry>
<term><varname>USBFunctionDescriptors=</varname></term>
- <listitem><para>Configure the location of the file containing
- <ulink url="https://www.kernel.org/doc/Documentation/usb/functionfs.txt">functionfs</ulink>
- descriptors. This is is used only when a socket with
- <varname>ListenUSBFunction=</varname> configured wants to
- activate this service. Content of this file is writen to
- <filename>ep0</filename> file after it is opened. This is
- required for socket activation using
- <varname>ListenUSBFunction=</varname> (i.e. for passing all
- functionfs endpoints to the service).</para></listitem>
+ <listitem><para>Configure the location of a file containing
+ <ulink
+ url="https://www.kernel.org/doc/Documentation/usb/functionfs.txt">USB
+ FunctionFS</ulink> descriptors, for implementation of USB
+ gadget functions. This is is used only in conjunction with a
+ socket unit with <varname>ListenUSBFunction=</varname>
+ configured. The contents of this file is written to the
+ <filename>ep0</filename> file after it is
+ opened.</para></listitem>
</varlistentry>
<varlistentry>
<term><varname>USBFunctionStrings=</varname></term>
- <listitem><para>Configure the location of file containing FunctionFS strings.
- Behavior is similar to <varname>USBFunctionDescriptors</varname>.</para></listitem>
+ <listitem><para>Configure the location of a file containing
+ USB FunctionFS strings. Behavior is similar to
+ <varname>USBFunctionDescriptors=</varname>
+ above.</para></listitem>
</varlistentry>
</variablelist>
<varlistentry>
<term><varname>ListenUSBFunction=</varname></term>
- <listitem><para>Specifies a
- <ulink url="https://www.kernel.org/doc/Documentation/usb/functionfs.txt">functionfs</ulink>
- endpoint location to
- listen on. This expects an absolute file system path as the
- argument. Behavior otherwise is very similar to the
- <varname>ListenFIFO=</varname> directive above. Use this to
- open functionfs endpoint <filename>ep0</filename>. When using
- this option, activated service has to have the
+ <listitem><para>Specifies a <ulink
+ url="https://www.kernel.org/doc/Documentation/usb/functionfs.txt">USB
+ FunctionFS</ulink> endpoint location to listen on, for
+ implementation of USB gadget functions. This expects an
+ absolute file system path as the argument. Behavior otherwise
+ is very similar to the <varname>ListenFIFO=</varname>
+ directive above. Use this to open FunctionFS endpoint
+ <filename>ep0</filename>. When using this option, the
+ activated service has to have the
<varname>USBFunctionDescriptors=</varname> and
<varname>USBFunctionStrings=</varname> options set.
</para></listitem>