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fblog: Framebuffer kernel log driver v4

From:  David Herrmann <>
Subject:  [PATCH 00/11] fblog: Framebuffer kernel log driver v4
Date:  Sun, 12 Aug 2012 16:53:14 +0200
Message-ID:  <>
Cc:  Florian Tobias Schandinat <>, Greg Kroah-Hartman <>,, Alan Cox <>,, Geert Uytterhoeven <>, David Herrmann <>
Archive-link:  Article


This is revision 4 of the fblog driver. It is a replacement for fbcon for
systems that do not want/need CONFIG_VT. It simply prints the kernel-log to all
connected framebuffers. Previous versions are available here:

This patchset is based on linux-next.

Changes from previous version:
  - Changed mailinglist to linux-fbdev instead of linux-serial
  - Added "main_only" and "activate_on_hotplug" module parameters to provide
    more fine-grained control over which framebuffers are used

As always simply remove the !VT dependency if you want to test this with VTs
enabled. Some more background information on deprecating CONFIG_VT can be found

I am still looking for someone who is willing to push this to linux-next through
his or her tree. Feedback is much appreciated!


David Herrmann (11):
  fbcon: move update_attr() into separate source file
  fbcon: move bit_putcs() into separate source file
  fblog: new framebuffer kernel log dummy driver
  fbdev: export get_fb_info()/put_fb_info()
  fblog: register one fblog object per framebuffer
  fblog: open fb on registration
  fblog: allow selecting fbs via sysfs and module-parameters
  fblog: cache framebuffer BLANK and SUSPEND states
  fblog: register console driver
  fblog: draw console to framebuffers
  MAINTAINERS: add fblog entry

 MAINTAINERS                     |   6 +
 drivers/video/Kconfig           |   5 +-
 drivers/video/Makefile          |   2 +-
 drivers/video/console/Kconfig   |  37 ++-
 drivers/video/console/Makefile  |   4 +-
 drivers/video/console/bitblit.c | 149 +--------
 drivers/video/console/fbcon.h   |   5 +-
 drivers/video/console/fbdraw.c  | 171 ++++++++++
 drivers/video/console/fbdraw.h  |  30 ++
 drivers/video/console/fblog.c   | 691 ++++++++++++++++++++++++++++++++++++++++
 drivers/video/fbmem.c           |   6 +-
 include/linux/fb.h              |   3 +
 12 files changed, 951 insertions(+), 158 deletions(-)
 create mode 100644 drivers/video/console/fbdraw.c
 create mode 100644 drivers/video/console/fbdraw.h
 create mode 100644 drivers/video/console/fblog.c


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