Using a git driver development tree - Revision history

Hock: /* Installing the new drivers on your kernel */

2010-04-25T04:34:16Z

Installing the new drivers on your kernel

← Older revision		Revision as of 04:34, 25 April 2010
Line 35:		Line 35:
	fi		fi
	done		done
		+
		+	Use this for staging driver:
		+
		+	for i in `find drivers/staging/$1 -name *.ko`; do
		+	if [ $i -nt /lib/modules/`uname -r`/kernel/$i ]; then
		+	sudo install -m 644 -c -D $i /lib/modules/`uname -r`/kernel/$i \|\| exit -1
		+	fi
		+	done
		+

	NOTE:		NOTE:

Mauro Carvalho Chehab: /* Removing the already loaded modules */

2010-04-23T01:00:11Z

Removing the already loaded modules

← Older revision		Revision as of 01:00, 23 April 2010
Line 49:		Line 49:
	There's an updated [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.		There's an updated [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.

-	In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run:	+	In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run. as root:
-	$ ./rmmod.pl unload	+	# ./rmmod.pl unload

	PS.: The other options of the script should be working as well, but they weren't really tested, since the only one that		PS.: The other options of the script should be working as well, but they weren't really tested, since the only one that
	is really useful outside Mecurial tree is the capability of removing the drivers from the memory.		is really useful outside Mecurial tree is the capability of removing the drivers from the memory.

Mauro Carvalho Chehab: /* Removing the already loaded modules */

2010-04-23T00:53:34Z

Removing the already loaded modules

← Older revision		Revision as of 00:53, 23 April 2010
Line 45:		Line 45:
	=== Removing the already loaded modules ===		=== Removing the already loaded modules ===

-	This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Chehab wrote a script that unloads all kernel modules from the memory. There's a [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.	+	This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Carvalho Chehab wrote a script that unloads all kernel modules from the memory. This script were integrated with the mercurial trees.
		+
		+	There's an updated [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.

	In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run:		In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run:
	$ ./rmmod.pl unload		$ ./rmmod.pl unload

-	The other options of the script should be working as well, but ~~I didn~~'t ~~test~~, since the only one ~~I find~~ really useful is the capability of removing the drivers from the memory.	+	PS.: The other options of the script should be working as well, but they weren't really tested, since the only one that
		+	is really useful outside Mecurial tree is the capability of removing the drivers from the memory.

Mauro Carvalho Chehab: /* Installing the new drivers on your kernel */

2010-04-23T00:48:58Z

Installing the new drivers on your kernel

← Older revision		Revision as of 00:48, 23 April 2010
Line 36:		Line 36:
	done		done

-	NOTE: if your kernel version changed, you'll need to re-build the kernel again, with	+	NOTE:
-	$ make olconfig	+	If your kernel version changed, you'll need to re-build the kernel again, with
-	$ make	+	$ make olconfig
-	In this case, you'll also need to re-install the drivers an the kernel with:	+	$ make
-	# make modules_install install	+	In this case, you'll also need to re-install the drivers ans the kernel with:
		+	# make modules_install install

	=== Removing the already loaded modules ===		=== Removing the already loaded modules ===

Mauro Carvalho Chehab: /* Installing the new drivers on your kernel */

2010-04-23T00:48:17Z

Installing the new drivers on your kernel

← Older revision		Revision as of 00:48, 23 April 2010
Line 39:		Line 39:
	$ make olconfig		$ make olconfig
	$ make		$ make
		+	In this case, you'll also need to re-install the drivers an the kernel with:
		+	# make modules_install install

	=== Removing the already loaded modules ===		=== Removing the already loaded modules ===

Mauro Carvalho Chehab: /* Removing the already loaded modules */

2010-04-23T00:38:46Z

Removing the already loaded modules

← Older revision		Revision as of 00:38, 23 April 2010
Line 43:		Line 43:

	This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Chehab wrote a script that unloads all kernel modules from the memory. There's a [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.		This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Chehab wrote a script that unloads all kernel modules from the memory. There's a [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.
		+
		+	In order to remove all V4L/DVB drivers from the memory, all that it is needed is to run:
		+	$ ./rmmod.pl unload
		+
		+	The other options of the script should be working as well, but I didn't test, since the only one I find really useful is the capability of removing the drivers from the memory.

Mauro Carvalho Chehab at 00:06, 23 April 2010

2010-04-23T00:06:47Z

← Older revision		Revision as of 00:06, 23 April 2010
Line 39:		Line 39:
	$ make olconfig		$ make olconfig
	$ make		$ make
		+
		+	=== Removing the already loaded modules ===
		+
		+	This is probably the trickiest part. You can, of course, just reboot the machine, but this may take some time, so Mauro Chehab wrote a script that unloads all kernel modules from the memory. There's a [http://linuxtv.org/downloads/git_tools/rmmod.pl rmmod.pl] version that works with git and with all kernels that put the media drivers at the right location.

Mauro Carvalho Chehab: Created page with '=== Compiling a Git repository === The git driver repositories contain the full Linux kernel tree. So, before working with a driver, a full kernel compilation should be done. Th...'

2010-04-22T23:02:44Z

Created page with '=== Compiling a Git repository === The git driver repositories contain the full Linux kernel tree. So, before working with a driver, a full kernel compilation should be done. Th...'

New page

=== Compiling a Git repository ===

The git driver repositories contain the full Linux kernel tree. So, before working with a driver, a full kernel compilation should be done. The easiest way is to run:
$ make oldconfig

This will use your kernel old configuration, asking you only about the new features that have added (or moved), when compared with your original kernel version.

The first build will take some time. In order to do it, just run:
$ make

After having the kernel built (and tested), subsequent compilations can be done by running:
make M=drivers/media/
or, if the driver is currently at staging, by running:
make M=drivers/staging/

With the above commands, only the media (or staging) drivers will be recompiled, if they got changed, saving you some time on testing the new driver features.

NOTE: if you added new files or changed the files dependencies, you may need to do a full make. In this case, just run:
$ make

=== Installing the new kernel ===

If this is the first time you're compiling the drivers, or if kernel version changed from your previous build, you should run a full drivers installation with:
# make modules_install install

Be sure to be root when installing the drivers.

=== Installing the new drivers on your kernel ===

After the first installation, you may just copy the new drivers with this small script:

for i in `find drivers/media -name *.ko`; do
if [ $i -nt /lib/modules/`uname -r`/kernel/$i ]; then
sudo install -m 644 -c -D $i /lib/modules/`uname -r`/kernel/$i || exit -1
fi
done

NOTE: if your kernel version changed, you'll need to re-build the kernel again, with
$ make olconfig
$ make