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Mauro Carvalho Chehab                                   2006 Apr 26

V4L/DVB building procedures are based at the use of Makefile rules.
Those rules are close to the ones at Linux Kernel, to allow an easier
usage.

=======================================================================
Quick building procedure is:
	make all
======================================================================

For those who may want more than just build all stuff there are some
other interesting parameters to make:

======================
Normal building rules:
all		- build all modules

clean		- Cleans compiled files from the tree,
		  but keeping the latest
		  used configuration and kernel version

distclean	- Cleans compiled files from the tree,
		  latest used configuration and kernel
		  version.

default		- Continues building the latest module selection
		  This is the behavior when just typed:
			make

install		- Installs all modules at kernel's default dir
		  for V4L/DVB. Requires root access.

rminstall	- cleans previous installations of V4L/DVB modules

sound-install	- installs the sound modules related to V4L/DVB
		  tree.

======================
Firmware rules:

firmware	- Create the firmware files that are enclosed at the
		  tree.
		  Notice: Only a very few firmwares are currently here

firmware_install- Install firmware files under /lib/firmware

=======================
Module selection rules:
(Those may require write access to kernel tree)

allmodconfig	- Called by make all. Selects all modules that are known
		  to compile against the kernel version used.

stagingconfig	- Select all modules, plus all staging modules. The
		  staging drivers are there because they may have
		  bad userspace API's, serious bugs and/or not fill
		  into Kernel required level of quality. So, be
		  careful with those drivers.

xconfig		- Generate a xconfig menu. Requires full
		  kernel source, since it depends on kernel's
		  qconf stript;

gconfig		- Generate a qt menu. Requires full
		  kernel source, since it depends on kernel's
		  gconf stript;

config		- Generate a text-mode menu. Requires full
		  kernel source, since it depends on kernel's
		  conf stript;

menuconfig	- Generate a ncurses menu. Requires full
		  kernel source, since it depends on kernel's
		  mconf and lxconfig stripts;

release		- Allows changing kernel version.
		  Typical usage is:
			make release VER=2.6.12-18mdk
			(to force compiling to 2.6.12-18mdk)
			(This will work only if
			 /lib/modules/2.6.12-18mdk/build/
			 points to that kernel version)
		  Or
			make release DIR=~/linux-git
			(to force using kernel at a specific dir)
		  To use current kernel version instead:
			make release

======================
Module handling rules:
(require root access)

insmod		- inserts all modules from V4L/DVB tree

rmmod		- removes all modules from V4L/DVB tree

reload		- removes then reinserts all modules

===================
Tree merging rules:

ivtv		- enable merged ivtv build, using the latest ivtv sources
		  from ivtvdriver.org (requires subversion)

cx88-ivtv	- enable cx88-blackbird ivtv API emulation

ivtv-update	- update ivtv sources from ivtvdriver.org

==========================================
Patch preparation and tree handling rules:
(used by developers)

kernel-links	- Generate links to V4L/DVB at kernel tree.
		  Requires write access to kernel tree.

cardlist	- Updates Documentation/video4linux/CARDLIST.*

update		- updates the tree from master repository

commit		- commits the change, asking for a commit msg

push		- sends outgoing stuff to master repository

checkemacs	- checks codingstyle and reports to emacs
		  using "make checkemacs" at emacs compile menu,
		  will report the lines with errors inside emacs.

checkpatch	- checks codingstyle and reports using the same
		  format as c. This way, c error parsers will
		  handle it.

checkterse	- checks codingstyle and reports using terse
		  syntax, used on several compilaton tools.

mismatch	- checks for linker section mismatch. In other words,
		  check if some driver has functions not properly
		  declared with __init/__exit, and similar tags.
		  It will also be more pedantic by dealing with
		  compilation warnings as if they are errors.

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