* Ben Lau <[EMAIL PROTECTED]> [071004 04:21]:
> On 10/4/07, Russell L. Harris <[EMAIL PROTECTED]> wrote:
>> I am confused. I am running Debian testing ("Lenny"), and, if
>> possible, I would like to install the linux-uvc drivers in accordance
>> with Debian protocol.
>>
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>
>> I used aptitude to install the Debian package linux-uvc-source. The
>> installation provided the file /usr/src/linux-uvc.tar.bz2 , which is
>> expanded with bunzip2 and tar, providing the following files:
>>
>> /usr/src/modules/linux-uvc/debian/rules
>> /usr/src/modules/linux-uvc/debian/control.modules.in
>> /usr/src/modules/linux-uvc/debian/control
>> /usr/src/modules/linux-uvc/debian/compat
>>
>> /usr/src/modules/linux-uvc/debian/copyright
>> /usr/src/modules/linux-uvc/debian/changelog
>> /usr/src/modules/linux-uvc/debian/README.Debian
>>
>> /usr/src/modules/linux-uvc/Makefile
>>
>> /usr/src/modules/linux-uvc/uvcvideo.h
>>
>> /usr/src/modules/linux-uvc/uvc_video.c
>> /usr/src/modules/linux-uvc/uvc_driver.c
>> /usr/src/modules/linux-uvc/uvc_queue.c
>> /usr/src/modules/linux-uvc/uvc_ctrl.c
>> /usr/src/modules/linux-uvc/uvc_v4l2.c
>> /usr/src/modules/linux-uvc/uvc_compat.h
>>
>> /usr/src/modules/linux-uvc/extract.c
>> /usr/src/modules/linux-uvc/.uvcvideo.o.d
>>
>> /usr/src/modules/linux-uvc/macbook-insight-firmware-loader.8
>>
>> It appears to me that, once I discover the proper Debian approach to
>> installation of linux-uvc, I can update the drivers simply by copying
>> into /usr/src/modules/linux-uvc/ the latest source files obtained via:
>>
>> # svn checkout svn://svn.berlios.de/linux-uvc/linux-uvc/trunk linux-uvc
>>
>> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>>
>> From the OpenFacts documents "Linux UVC" and "HowTo compile for Ubuntu
>> 6.06 LTS", it appears that the first thing to do is to compile the
>> modules:
>>
>> # make
>>
>> # make install
>>
>> -----------------------------------
>>
>> Second, the module uvcvideo.ko is to be removed from /lib/modules/ ,
>> so that the module is not loaded automatically. (This may be a
>> problem with Debian, because /lib/modules/ has several subdirectories,
>> and the structure of /lib/modules/ is not immediately apparent to me.)
>>
>> -----------------------------------
>>
>> Third, /etc/modprobe.conf.local is to be edited to add the line:
>>
>> install uvcvideo /sbin/modprobe snd_usb_audio;
>> /sbin/modprobe --ignore-install uvcvideo
>>
>> However, I find in Debian no file /etc/modprobe.conf.local .
>>
>> -----------------------------------
>>
>> Fourth, the commands:
>>
>> # modprobe -r uvcvideo
>>
>> # modprobe -r snd_usb_audio
>>
>> are to be used after unplugging the camera, in the event that the
>> camera needs to be restarted.
>>
>> -----------------------------------
>>
>> Adding to my confusion is the instruction given in the file
>> /usr/src/modules/linux-uvc/debian/README.Debian , which states that
>> the module-assistant tool should be used to install linux-uvc, using
>> the commands:
>>
>> # module-assistant prepare
>>
>> # module-assistant auto-install linux-uvc
>>
>> -----------------------------------
>>
>> Would someone on the list who is knowledgeable concerning Debian
>> kindly help me sort out this matter?
>>
>
> module-assistant is the tool to help to compile module-source package
> into binary kernel module , and then pack into a Debian package. So
> that you could install/uninstall through the package management
> system(dpkg).
>
> The generated package is placed in /usr/src . If you build with the
> argument "auto-install" , it will be installed automatically. It is
> recommended (and the most simplest) way to install kernel module in
> Debian system. Moreover, the generated package works with a specific
> kernel version only. That means the package should be rebuild after
> kernel upgrade.
>
> However , Debian may not be able to provide the most updated module
> source. Just take UVC as an example, the most updated revision
> no. is 132 at this moment , but the module source package in SID
> could only offer rev 120. If you need the features provided by the
> most updated revision , then you need to install by source through
> the svn command, and then build by the command 'make` & `make
> install`.
Thanks for the explanation, Ben.
I have been running Debian for about five years now, and I have been
reading man pages, including the man page for module-assistant. But I
am still struggling with the concepts involved in this. I intend to
write a mini-HOWTO once I understand the concepts.
I would like to ask you two or three more questions, please.
-----------------------------------
(1) Is the file:
/usr/src/modules/linux-uvc/debian/rules
executed automatically by module-assistant?
Or is the file to be executed from the command line as a script:
# ./rules
or as a makefile:
# make rules
-----------------------------------
(2) Can I enjoy benefit of both the Debian approach and the
most-recent driver revisions, by copying the source files obtained
from the svn.berlios.de svn repository into:
/usr/src/modules/linux-uvc/
and thus overwriting the "linux-uvc-source" files obtained from the Debian
repository?
-----------------------------------
(3) To which directory must I "cd" before executing:
# module-assistant prepare
# module-assistant auto-install linux-uvc
-----------------------------------
RLH
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