Commit 60e89a10 authored by Randy Dunlap's avatar Randy Dunlap Committed by Jonathan Corbet
Browse files

Documentation: fb: udlfb: clean up text and formatting 



Clean up punctuation, spelling, and formatting for command line usage
and modprobe config file usage in udlfb.rst.

Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Bernie Thompson <bernie@plugable.com>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: Helge Deller <deller@gmx.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Link: https://lore.kernel.org/r/20220828192501.14232-1-rdunlap@infradead.org


Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
parent 3832d1fd

Documentation/fb/udlfb.rst

+15 −8
Original line number Diff line number Diff line
@@ -86,16 +86,23 @@ Module Options 
Special configuration for udlfb is usually unnecessary. There are a few

options, however.



From the command line, pass options to modprobe

From the command line, pass options to modprobe::



  modprobe udlfb fb_defio=0 console=1 shadow=1



Or modify options on the fly at /sys/module/udlfb/parameters directory via

sudo nano fb_defio

change the parameter in place, and save the file.

Or change options on the fly by editing

/sys/module/udlfb/parameters/PARAMETER_NAME ::



  cd /sys/module/udlfb/parameters

  ls # to see a list of parameter names

  sudo nano PARAMETER_NAME

  # change the parameter in place, and save the file.



Unplug/replug USB device to apply with new settings.



Unplug/replug USB device to apply with new settings

Or to apply options permanently, create a modprobe configuration file

like /etc/modprobe.d/udlfb.conf with text::



Or for permanent option, create file like /etc/modprobe.d/udlfb.conf with text

  options udlfb fb_defio=0 console=1 shadow=1



Accepted boolean options: